Fabric treatment for stain release

ABSTRACT

A fabric treatment composition that includes at least one zeta potential modifier and a hydrophobic agent with a melting point or glass transition temperature below 100° C. that imparts fabric protection benefits, including improved stain resistance, oil repellency, water repellency, softness, wrinkle and damage resistance, and better handfeel to treated fabrics. Particularly preferred compositions include at least one zeta potential modifier in an amount sufficient to adjust the zeta potential of the composition to be positive and greater than zero millivolts. Particularly preferred compositions also include a fluoropolymer. The composition can be used as a pretreatment prior to washing, through soaking or direct spray application, or added to the wash or rinse cycle of an automatic washing machine, or used prior to or during the drying cycle of an automatic drying machine or refresher machine, or used prior to or in conjunction with an ironing device. The fabric treatment is complete when the fabric is cured by drying and/or heating.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a divisional application of U.S. application Ser.No. 10/338,350, filed Jan. 8, 2003, entitled FABRIC TREATMENT FOR STAINRELEASE (Atty. Docket No.: CLORX-01000US0) which claims the benefit ofU.S. Provisional application filed Apr. 9, 2002, Ser. No. 60/371,452.

FIELD OF THE INVENTION

The present invention relates to a fabric treatment composition forimparting fabric protection benefits, including stain resistance, oilrepellency, water repellency, softness, wrinkle and damage resistance,and improved handfeel. The composition can be used as a pretreatmentprior to washing, through soaking or direct spray application, or addedto the wash or rinse cycle of an automatic washing machine, or usedprior to or during the drying cycle of an automatic drying machine orrefresher machine, or used prior to or in conjunction with an ironingdevice. The fabric treatment is complete when the fabric is cured bydrying and/or heating.

BACKGROUND OF THE INVENTION

Most textile treatment agents for stain release, water repellency andoil repellency currently require industrial baths with highconcentrations of chemicals followed by curing at high temperatures(substantially above 100° C.) often in commercial drying ovens. Forexample, U.S. Pat. No. 6,251,210 to Bullock et al. discloses a dualsystem consisting of a first treatment with at least 5 weight %fluorochemical textile agent followed by at least one secondarytreatment with at least 4 weight % fluorochemical textile agent. Thetextile agent comprises, in addition to the fluorochemical, a urethanelatex, a compatible acrylate latex and a cross-linking resin. The firsttreatment uses a low solids latex having a glass transition temperaturefrom 10° C. to 35° C. The second treatment is a high solids latex havingthe consistency of wood glue or wallpaper paste, applied to one side ofthe fabric, and having a glass transition temperature from −40° C. to−10° C. This combined commercial treatment system is to produce a fabricthat is liquid repellent, stain resistant, and is easy to handle.

U.S. Pat. No. 5,047,065 to Vogel et al. describes the combination of aperfluoroaliphatic group-bearing water/oil repellent agent dispersion,an emulsifiable polyethylene dispersion, and a soft-hand extender basedon a modified hydrogen alkyl polysiloxane. The compositions are paddedonto fabric at a concentration of 70-150 g/L and then cured at 150° C.

U.S. Pat. No. 5,019,281 to Singer et al. describes the combination of awater-soluble C₉-C₂₄ quaternary ammonium salts of alkyl phosphonic acid,a separate C₁₂-C₂₄ quaternary ammonium compound, and a dispersedpolyethylene wax. The compositions are padded onto fabric at aconcentration of 30 g/L and then cured at 110° C. U.S. Pat. No.5,153,046 to Murphy describes the combination of fluorochemical textileantisoilant, lubricant, and combination of cationic and nonionicsurfactants. The compositions are intended for commercial application tonylon yarns.

Water-proofing has traditionally been performed with solvent-based waxand wax-like coating commonly using paraffin wax, chlorinated paraffinwaxes, and ethylene/vinyl acetate waxes such as those materials cited inU.S. Pat. No. 4,027,062 to Englebrecht et al. and U.S. Pat. No.4,833,006 to McKinney et al. It is also possible to make fabrics liquidresistant by using silicone materials commonly known in the art.

Some technologies have been developed to provide a fabric benefit ondirect application or as an ironing aid. For example, U.S. Pat. No.5,532,023 to Vogel et al. describes the post-wash use of silicones andfilm-forming polymer for use on damp or dry clothing to relax wrinkles.The composition is sprayed on the fabric and then ironed or stretched byhand for wrinkle reduction benefit. There is no indication that thecomposition can be applied in the wash.

Products that are applied directly on the fabric, for instance byspraying followed by curing with an iron or in a hot dryer at hightemperatures, such as above 100° C., suffer several disadvantages.Usually, a thick or uneven coat results, which gives areas of incompleteoil and water repellency and a fabric hand feel that lacks softness.These products can also decrease the porosity of fabric, resulting inuncomfortable conditions for the wearer during use. An additionaldrawback of direct application products is that they cannot be used onfabrics that are already stained or soiled because they lock in stainsand soils.

Fluoropolymers and hydrophobic agents have previously been suggested forlaundry use. U.S. Pat. No. 6,075,003 to Haq et al. disclose the use offluoropolymers with cationic fabric softeners. U.S. Pat. No. 5,910,557to Audenaert et. al. discloses the use of fluorochemical polyurethanecompounds to impart oil and water repellency. These patents do notsuggest the additional use of hydrophobic agents with fluoropolymers inthe wash for combined oil and water repellency, while maintaining a softhand. The use of generally less expensive hydrophobic agents, such aswax, allows products whose value is more acceptable to the consumer.

U.S. Pat. No. 6,180,740 to Fitzgerald describes an aqueous emulsioncontaining a fluorocopolymer composition that provides oil-andwater-repellency to textiles. The composition is apparently stable underconditions of high alkalinity, high anionic concentration, and/or highshear conditions. The stability of emulsions having either positive ornegative zeta potentials is said to be achieved by controlling therelative amounts of cationic and anionic surfactants. Emulsions with apositive zeta potential are desirable for applications where theemulsion is used to apply a coating to textile fabrics, which aretypically anionic in character. Fabric treatment requires drying atrelative high temperatures of between 110° C. to 190° C.

U.S. Pat. No. 6,379,753 to Soane et al. describes methods for modifyingtextile materials to render them, for example, water repellant bycovalently bonding multifunctional molecules to the textile material.The multifunctional molecules are polymers with plural functional groupsor regions, such as binding groups, hydrophobic groups, and hydrophilicgroups and oleophobic groups.

As can be seen there is a need for a product that offers the controlledand even coating of commercial treatment operations with the convenienceand ease of home use. Additionally the coating should be cured attemperatures that are attainable in commonly available residentialdryers as curing at high temperatures makes the coating excessivelydurable typically resulting in an unfavorable handfeel owing toexcessive build up over numerous treatment cycles. Furthermore, thereduced temperature curing results in not only improved handfeel, itallows for an easily reversible and/or removable coating. Such atransient coating reduces coating build up over multiple applications ortreatments that result in poor handfeel, and also reduces the potentialfor leaving a visible residue or causing an undesirable changes inappearance, such as yellowing or discoloration of white or lightedcolored fabrics. The product should also not lock in pre-existing stainsor soils and thereby ruin fabrics, including clothes.

SUMMARY OF THE INVENTION

The present invention is based in part on the discovery thatcompositions containing at least one zeta potential modifier and ahydrophobic agent when applied to fabrics and cured by drying and/orheating will impart numerous fabric protection benefits, including stainresistance, oil repellency, water repellency, softness, wrinkle anddamage resistance, and improved handfeel. Fabric protection benefitsinclude minimizing fiber wear (e.g., retaining fiber tensile strength),maintaining fabric appearance by reducing fiber pilling, and/or reducingcolor loss, and/or inhibiting the deposition of fugitive dyes onto thefabric during a washing process. These benefits, individually andcollectively, increase the useful longevity of the treated garment orfabric. Preferred fabric treatment compositions also include afluoropolymer. In one aspect, the invention is directed to a method ofincreasing the fabric protection properties of a fabric that includesthe steps of:

(a) depositing a composition onto the fabric wherein the compositioncomprises at least one zeta potential modifier and a hydrophobic agenthaving a melting point or glass transition temperature of less than 100°C.; and

(b) curing said fabric at a temperature above ambient but less than 100°C. In another aspect, the invention is directed to a fabric work that islaundered in a treatment cycle, wherein the fabric work is placed intotreatment liquor including a composition for textile treatment thatincludes:

a fluoropolymer;

a hydrophobic agent having a melting point or glass transitiontemperature of less than 100° C.; and

an effective amount of at least one zeta potential modifier so that thecomposition has a zeta potential that is positive and greater than zeromillivolts.

In a further aspect, the invention is directed to a composition fortextile treatment that includes:

-   -   a fluoropolymer;    -   a hydrophobic agent having a melting point or glass transition        temperature of less than 100° C.; and    -   an effective amount of at least one zeta potential modifier so        that the composition has a zeta potential that is positive and        greater than zero millivolts.

DETAILED DESCRIPTION OF THE INVENTION

Fabric treatment compositions of the present invention generallycomprise (i) a fluoropolymer, (ii) a hydrophobic agent having a meltingpoint or glass transition temperature of less than 100° C., and (iii) aneffective amount of at least one zeta potential modifier so that thecomposition has a zeta potential that is positive and greater than zeromillivolts. Preferred compositions are aqueous systems that may includean organic solvent.

As further described herein the presence of at least one zeta potentialmodifier is preferred when the composition is used in conjunction withor following laundering with detergent. However, the potential modifieris not necessary when the fabric treatment composition is used topretreat or treat a fabric by direct application or through a treatmentliquor in which the inventive fabric treatment composition is used inthe absence of any other treatments such as a presoak composition,laundry additive or detergent. Hence, the zeta potential modifier is notnecessary under these preceding conditions to impart the desirablefabric protection benefits, including stain resistance, oil repellency,water repellency, softness, wrinkle and damage resistance, and improvedhandfeel. All percentages specified herein are based on weight unlessnoted otherwise.

Fluoropolymer

According to the present invention, the fluoropolymers as prepared maycontain some amount of surfactants, especially mixtures of cationic andnonionic surfactants, but usually the amounts are small. A preferredrange for fluoropolymers is 0.5 to 60%, more preferred is 1 to 40%, andfurther preferred is 5 to 30%.

The fluoropolymers employed in the invention can be water insoluble oilysoil repellents and have one or more fluoroaliphatic radicals, typicallyone or more perfluoroalkyl radicals. They can be nonionic in that theydo not contain an ionized functional group such as a quaternary ammoniumgroup. Useful classes of the fluoropolymers are the fluorocarbonyliminobiurets, the fluoroesters, the fluoroester carbamates, and thefluoropolymers. The class of fluorocarbonylimino biurets is representedby U.S. Pat. No. 4,958,039 to Pechhold, which is incorporated herein byreference. The class of fluorocarbonylimino biurets is particularlyuseful because of the outstanding antisoilant protection it provides.The class of fluoroesters is represented by U.S. Pat. No. 3,923, 715 toDettre et al. and U.S. Pat. No. 4,029,585 to Dettre et al., which areincorporated herein by reference. These patents disclose perfluoroalkylesters of carboxylic acids of 3 to 30 carbon atoms. An example is thecitric acid ester of perfluoroalkyl aliphatic alcohols such as a mixtureof 2-perfluoroalkyl ethanols containing 8 to 16 carbon atoms. The classof fluoroester carbamates is also disclosed in aforementioned U.S. Pat.No. 4,029,585. The class of fluoropolymers is represented by U.S. Pat.No. 3,645,989 to Tandy and U.S. Pat. No. 3,645,990 to Raynolds, whichare incorporated herein by reference. The patents describe,respectively, fluorinated polymers from acrylic and methacrylic derivedfluoro-substituted monomers and methyl acrylate or ethyl acrylate,optionally with small amounts of other monomers.

A useful fluoropolymer is the terpolymer formed by polymerization of analiphatic or aromatic alpha olefin or an alkyl vinyl ether, anon-hydrolyzable perfluoroalkyl substituted monomer and maleic anhydrideas described in U.S. Pat. No. 6,245,116 to Pechhold et al which isincorporated herein by reference. Useful fluoropolymers are ZONYL 8412and ZONYL RN available from Ciba-Geigy; SCOTCHGARD FC 255, SCOTCHGARD FC214-230, FLUORAD series, such as FLUORAD FC 129, available from the 3MCorporation (Minnesota Mining and Manufacturing Company, St. Paul,Minn.); and TEFLON RN, TEFLON 8070, and TEFLON 8787, available fromDupont. Additional useful fluoropolymers include ZONYL 7950, ZONYL 5180,ZONYL 5180, ZONYL 6885, ZONYL 7910, ZELAN 338, ZONYL 6700, ZONYL 8300,ZONYL 6991, ZONYL 310 and ZONYL NWG, all from Dupont. Usefulfluoropolymers also include fluoropolymers available from Asahi Glass,Atochem (Atofina), Daikin, Clariant, Goldschmidt, Hoechst Celanese,Mitsubishi, Peach State Laboratories, Shaw Industries and TrichromaticCarpet. Examples include the FOMBLIN FE-20 series of aqueous basedperfluoropolyether microemulsions (available from Ausimont USA,Thorofare, N.J.), fluoropolymer emulsion 3310, 3311 and Unidyne® TG-532(available from Daikin Industries Ltd., Japan), fluoropolymer emulsionsNUVA 5006, NUVA LB Liquid, NUVA LC Liquid (available from ClariantCorporation, Charlotte, N.C.), fluoropolymer REPEARL F-45 (availablefrom Mitsubishi International Corporation, NY N.Y.) and MYAFIX WS andMYAFIX EX.WS (available from Peach State Labs, Rome, Ga.). Otherexamples include NUVA FT fluorochemical acrylate polymer (available fromHoeschst Celanse, Charlotte, N.C.), SHAWGUARD 353 fluoroalkyl acrylatecopolymer (available from Shaw Industries, Inc.) and BARTEX TII, BARTEXMAC, both fluoroalkyl acrylate polymers (available from TrichromaticCarpets, Inc., Quebec, Canada).

Highly preferred materials of this class of fluoropolymers are thosethat do not cause any significant color change, nor impart anydiscoloration, such as graying or yellowing, to the fabrics to whichthey are applied, either during treatment followed by drying and/orcuring, or after the drying and/or curing step followed by normalexposure to the elements, such as air, moisture or sunlight exposure.

Hydrophobic Agent

A preferred range for hydrophobic agents is 0.5 to 60%, more preferredis 1 to 40%, and further preferred is 5 to 30%.

The hydrophobic agent compounds of the invention include those which areat least partly insoluble in water at a temperature of 20° C. and whichhave a melting point or glass transition temperature below 100° C. andpreferably between about 45° C. to below 100° C. Suitable hydrophobicagents include hydrophobic polymer, copolymers, and copolymerscontaining hydrophobic monomers. Suitable hydrophobic agents includehydrophobic waxes, including, but not limited to paraffin waxes. Theparaffin waxes suitable for use in accordance with the invention aregenerally complex mixtures without a clear-cut melting point. Forcharacterization purposes, their melting range is normally determined bydifferential thermoanalysis (DTA), as described in “The Analyst” 87(1962), 420, and/or by their solidification point. This is understood tobe the temperature at which the wax changes from a liquid into a solidstate through slow cooling. According to the invention, both paraffinscan be completely liquid at room temperature, i.e. those with asolidification point below 25° C., and paraffins solid at roomtemperature may be used. The paraffin wax is preferably solid at roomtemperature and can be present in completely liquid form at 100° C.Suitable paraffin waxes for use in accordance with the invention may beobtained, for example, under the name of LUNAFLEX from Fuller and underthe name of DEAWAX from DEA Mineralöl AG.

Other suitable hydrophobic agents are produced from ethylenicallyunsaturated monomers. Examples of such monomers are styrene, acrylicacid or methacrylic acid esters of aliphatic C₁ to C₈ alcohols,acrylonitrile, vinyl acetate, acrylic acid and methacrylic acid.Poly(meth)acrylates of two or more of these monomers, which mayoptionally contain other monomers in small quantities, are particularlypreferred. Most particularly preferred polymers contain 1 to 30 parts byweight of monomers containing carboxylic acid groups; 30 to 70 parts byweight of monomers which form homopolymers having glass temperaturesbelow 20° C., preferably esters of acrylic acid with C₁ to C₈ alcoholsand/or methacrylic acid with C₄ to C₈ alcohols; and 30 to 70 parts byweight of monomers which form homopolymers having glass transitiontemperatures above room temperature, preferably methacrylic acid estersof C₁ to C₃ alcohols or styrene. Examples of such polymers include thefollowing commercial products that are available as dispersions: SYNTRAN1501 (Interpolymer), PRIMAL 644 (Rohm & Haas), NEOCRYL A 1049 (ICI).Other preferred polymers include low molecular weight (below 500,000)polyethylene, low density polyethylene, polypropylene, polyolefin,polyurethane, ethyl vinyl acetate, polyvinyl chloride, and co-polymers.

Another class of suitable hydrophobic agents are emulsifiable waxes.Emulsifiable waxes, capable of forming wax emulsions, include, forexample, oxidized polyethylene, ethylene acrylic acid copolymers, andmontanic acid and ester waxes available as LUWAX. Also suitable aremaleic grafted polyolefin waxes, paraffin, other hydrocarbon waxes andvegetable waxes such as carnauba and candelillia. Preferred emulsifiablewaxes include oxidized polyethylene, ethylene acrylic copolymers, andmaleic grafted polyolefins. These include waxes containing chemicalgroups which facilitate emulsification such as carboxylic or relatedgroups. Examples of emulsifiable waxes include oxygen-containing wax oroxidized waxes as illustrated by those described in the followingpatents: natural waxes such as candellila, carnauba, beeswax, coconutwax, montan wax, as well as oxidized petroleum waxes as illustrated byU.S. Pat. No. 2,879,237 to Groote et al., U.S. Pat. No. 2,879,238 toGroote et al., U.S. Pat. No. 2,879,239 to Groote et al., U.S. Pat. No.2,879,240 to Groote et al., and U.S. Pat. No. 2,879,241 to Groote etal., U.S. Pat. No. 3,163,548 to Stark, and U.S. Pat. No. 4,004,932 toBienvenu, which are incorporated herein by reference. Other examplesinclude carboxylic adducts such as maleic and related anhydrides addedto waxes such as those described in the following U.S. Pat. No.3,933,511 to Heintzelman et al., and U.S. Pat. No. 3,933,512 toHeintzelman et al., which are incorporated herein by reference. Typicalexamples are esters, amides, and ester-amides of compositions of one ormore of the formulas disclosed in U.S. Pat. Nos. 3,933,511 and 3,933,512which are incorporated herein by reference. Some of these waxes are soldby Petrolite Corporation under the name CERAMER.

Other preferred waxes may be, for example, alkyl methycone AMS-C30 (DowCorning), natural candelilla (Candellila from Frank B. Ross),stearyoxyytrimethylsilane 580 wax (Dow Corning), cetyl palmitate DUB PCStearine (Dubois), microcrystalline/petrolatum MULTIWAX B710 (Witco),Scale paraffin (Strahl and Pitsch), natural beeswax (Frank B. Ross),microcrystalline (Ultraflex Petrolite), microcrystalline Ross wax 1329/1(Frank B. Ross), microcrystalline Multiwax 110X (Witco), paraffin(Altafin 135/140), petrolatum (Petrolatum Snow from Penreco), refinedparaffin (Strahl and Pitsch), and paraffin Altafin 125/130. Preferably,the low melting point wax is selected from microcrystalline MultiwaxW145A (Witco), paraffin (Altafin 140/145 from Astor-Durachem), andmicrocrystalline Ross wax 1365 (Frank B. Ross). Highly preferredmaterials of this class of hydrophobic agents are those that do notcause any significant color change, nor impart any discoloration, suchas graying or yellowing, to the fabrics to which they are applied,either during treatment followed by drying and/or curing, or after thedrying and/or curing step followed by normal exposure to the elements,such as air, moisture or sunlight exposure.

Liquid Carrier

The liquid carrier is preferably an aqueous system. The carrier can alsocontain a low molecular weight organic solvent that is highly soluble inwater, e.g., C₁ to C₄ monohydric alcohols, C₂ to C₆ polyhydric alcohols,such as alkylene glycols and polyalkylene glycols, alkylene carbonates,and mixtures thereof. Examples of these water-soluble solvents includeethanol, propanol and isopropanol. Water is a preferred liquid carrierdue to its low cost, availability, safety, and environmentalcompatibility. The water can be distilled, deionized, or tap water.

Highly preferred materials of this class of liquid carriers are thosethat do not cause any significant color change, nor impart anydiscoloration, such as graying or yellowing, to the fabrics to whichthey are applied, either during treatment followed by drying and/orcuring, or after the drying and/or curing step followed by normalexposure to the elements, such as air, moisture or sunlight exposure.

When a concentrated composition is used, the level of liquid carrier cantypically be from about 20% to about 80% of the composition, preferablyfrom about 30% to about 70%, and more preferably from about 40% to about60% of the composition. When a dilute composition is used, for instancein a rinse added maintenance or spray application, the amount of liquidcarrier can be greater. For rinse added maintenance applications, theliquid carrier may typically range from about 50% to about 99% of thecomposition, preferably from about 60% to about 98%, and more preferablyfrom about 80% to about 95% of the composition. For direct applications,such as for spray and aerosol applications, the liquid carrier cantypically range from about 70% to about 99.9%, by weight of thecomposition, preferably from about 80% to about 99.5%, and morepreferably from about 90% to about 99% of the composition.

Zeta Potential Modifier

Compositions of the present invention include fluoropolymers andhydrophobic agents that become covalently and/or non-covalently attachedto the surface of fabrics upon being cured at elevated temperatures.There is a wide range of phenomena which can influence the fundamentalinteractions at the molecular and colloidal level. One of these factorsis the electrokinetics. In this regard, the tern, zeta potential,applies to the electrical charges existing in fine dispersions.Specifically, a solid particle, e.g., insoluble polymer, that issuspended in an aqueous system is surrounded by a dense layer of ionshaving a specific electrical charge. This layer is surrounded by anotherlayer, more diffuse than the first, that has an electrical charge of itsown. The bulk of the suspended liquid also has its own electricalcharge. The difference in electrical charge between the dense layer ofions surrounding the particle and the bulk of the suspended liquid isthe zeta potential, usually measured in millivolts. The zeta potential,ξ, is defined by the equation:ξ=4πδq/Dwhere q is the charge on the particle, δ is the thickness of the zone ofinfluence of the charge on the particle, and D is the dielectricconstant of the liquid.

Without being bound by theory, it is believed that the fluoropolymersare attracted to the fabric surface owing to a combination of van derWaals attractive forces and electrostatic interactions. In the case oftreating fabrics containing cellulose fibers, e.g., cotton, the surfaceof the fabric is negatively charged due to the presence of thecarboxylic groups of the cellulose. In the case of treating fabricscontaining synthetic fibers, such as polyester, nylon, polyamide andother synthetic polymers or blends, adsorbed materials such as negativecompounds or negatively charged surface active materials, e.g., anionicsurfactants found in detergents, can result in the surface of the fabricbecoming negatively charged due the presence of these materials on thefabric surface. Without being bound by theory, it is believed that theexistence of negatively charged groups or adsorbed negatively chargedmaterials on the fabric surface may inhibit the attraction of thefluoropolymers to the fabric surface to at least to some extent.

It is believed that the adverse effect of any negative surface chargepresent on fabrics to be treated, regardless of the cause or source ofsaid negative surface charge, can be reduced or avoided by introducingan appropriate amount of zeta potential modifier to adjust the zetapotential of the treatment liquor to a positive value greater than zero.Typically sufficient zeta potential modifier is added so that the zetapotential of the treatment liquor is positive and greater than zeromillivolts. Preferably the zeta potential of the treatment liquor rangesfrom a positive value of zero to about +150 millivolts and preferably isless than about +100 millivolts. When at least one zeta potentialmodifier is employed, it will typically range from 0.1 to 30% of thecomposition. It has been found that exceeding this level leads todecreased performance. Without being bound by theory, it is believedthat exceeding this level of zeta potential modifier leads tointerference in depositing the desired repelling species. This discoverydistinguishes the invention from prior art that employs zeta potentialmodifiers, given that the levels in the instant invention are dictatedby efficacy of the treatment liquor, not for stabilization of thecomposition.

Preferred zeta potential modifiers are cationic agents including, forexample, cationic monomers, polymers, and copolymers comprising cationicmonomers, wherein the cationic monomer is present at least to an extentsufficient to provide an overall net cationic nature, i.e. overallpositive charge, to the copolymer. Preferred cationic agents includecationic surfactants, including, but not limited to, mono and di-methylfatty amines, alkyl trimethyl ammonium salts, dialkyl dimethyl ammoniumsalts, alkyl amine acetates, trialkylammonium acetates,alkyldimethylbenzyl ammonium salts, dialkymethylbenzyl ammonium salts,alkylpyridinium halide and alkyl (alkyl substituted) pyridinium salts,alkylthiomethylpyridinium salts, alkylamidomethylpyridinium salts,alkylquinolinium salts, alkylisoquinolinium salts,N,N-alkylmethylpyrollidonium salts, 1,1-dialkylpiperidinium salts,4,4-dialkylthiamorpholinium salts, 4,4-dialkylthiamorpholinium-1-oxidesalts, methyl bis (alkyl ethyl)-2-alkyl imidazolinium methyl sulfate(and other salts), methyl bis(alkylamido ethyl)-2-hydroxyethyl ammoniummethyl sulfate (and other salts), alkylamidopropyl-dimethylbenzylammonium salts, carboxyalkyl-alkyldimethyl ammonium salts, alkylamineoxides, alkyldimethyl amine oxides, poly(vinylmethylpyridinium) salts,poly(vinylpyridine) salts, polyethyleneimines, trialkyl phosphoniumbicarbonates (and other salts), trialkylmethyl phosphonium salts,alkylethylmethylsulfonium salts, and alkyldimethylsulfoxonium salts.

It should be noted that the source of the zeta potential modifiers isnot critical. Thus, as further demonstrated herein, commerciallyavailable fabric softeners that include cationic surfactants can beemployed as a source of zeta potential modifiers. Thus, the fabricsoftener serves multiple functions including facilitating the attachmentof the fluoropolymers and hydrophobic agents to the fabric surface.Further, multivalent cationic salts, including cations of the alkalineearth metals (Group IIA), transition metals (Groups IIB, IVB, VB, VIB,VIIB, VIIIB, IB, IIB, IIA, IVA) and non-metal elements (Groups IVA, VA)may be appropriate for use as zeta potential modifiers alone, combinedtogether, or in combination with other zeta potential modifiersdescribed herein.

It should further be noted that the zeta potential modifiers areincluded as optional ingredients of the fabric treatment composition asdiscussed herein. Thus when the composition is formulated for use as atreatment not in the presence of another treatment aid, for example adetergent containing anionic surfactants, or when the composition isformulated for use as a direct fabric treatment, then the zeta potentialmodifiers are deemed optional in that they are not needed to counteractthe negatively charged species, such as anionic surfactants found incommercial detergents, that might otherwise interfere to some extentwith the attraction of the fluoropolymer to the fabric surface.

Highly preferred materials of this class of zeta potential modifiers arethose that do not cause any significant color change, nor impart anydiscoloration, such as graying or yellowing, to the fabrics to whichthey are applied, either during treatment followed by drying and/orcuring, or after the drying and/or curing step followed by normalexposure to the elements, such as air, moisture or sunlight exposure.

Optional Ingredients

Emulsifiers

The above fluoropolymers and hydrophobic agents may require the use ofemulsifiers, such as ethoxylated fatty alcohols, fatty amides, fattyacids and alkylphenols and fatty amines or salts thereof. Otherpreferred emulsifiers include quaternary ammonium or protonated aminecationic surfactants such as trimethyl-dodecylammonium chloride,trimethyl-hexadecylammonium chloride, dimethyl-dicocoammonium chloride,and dimethyl-octadecylammonium acetate. Preferred nonionic emulsifiersinclude the etherification products of ethylene oxide and/or propyleneoxide with glycerol monooleate, oleic acid, cetyl alcohol, pelargonicacid, stearyl alcohol, sorbitan monooleate, sorbitan monosearate.

Highly preferred materials of this class of emulsifiers are those thatdo not cause any significant color change, nor impart any discoloration,such as graying or yellowing, to the fabrics to which they are applied,either during treatment followed by drying, or after the drying stepfollowed by normal exposure to the elements, such as air, moisture orsunlight exposure.

pH Adjusters

The pH of a 10% solution of compositions of this invention may beadjusted to be in the range from about 2 to about 11. Adjustment of pHmay be carried out by including a small quantity of an acid in theformulation. Because no strong pH buffers need be present, only smallamounts of acid may be required. The pH may be adjusted with inorganicor organic acids, for example hydrochloric acid or alternatively withmonobasic or dibasic organic acids, such as acetic acid, maleic acid orin particular glycolic acid. Additional acids that can be used include,but are not limited to, methyl sulfonic, hydrochloric, sulfuric,phosphoric, citric, maleic, and succinic acids. Adjustment of pH may becarried out by including a small quantity of a base in the formulation.Because no strong pH buffers need be present, only small amounts of basemay be required. The pH may be adjusted with inorganic bases, including,but not limited to, alkali metal or alkaline earth metal salts ofhydroxides, carbonates, bicarbonates, borates, sulfonates, phosphates,phosphonates and silicates. The pH may be adjusted with organic bases,including, but not limited to, salts of monocarboxylic acids, salts ofdicarboxylic acids, salts of citric acid and other suitable organicacids with water soluble conjugate bases presented previously herein.The pH may be adjusted with organic bases such as the alkanolaminesincluding methanol, ethanol and propanol amines, including dimethanol,diethanol and dipropanol amines, and including trimethanol, triethanoland tripropanol amines.

Highly preferred materials of this class of pH adjusters are those thatdo not cause any significant color change, nor impart any discoloration,such as graying or yellowing, to the fabrics to which they are applied,either during treatment followed by drying and/or curing, or after thedrying and/or curing step followed by normal exposure to the elements,such as air, moisture or sunlight exposure.

Silicones

An optional silicone component can be used in an amount from about 0.1%to about 6% of the composition, preferably from 0.1 to 3% of thecomposition. These optional ingredients include silicones andorganopolysiloxanes. In addition to the known dialkylpolysiloxanes, itis possible to use, in particular, hydrophilizing silicones, such asdimethylpolysiloxanes which contain incorporated epoxy groups and/orpolyethoxy or polypropoxy or polyethoxy/propoxy groups. Preferredsiloxanes include aminoethylaminopropyl dimethyl siloxane, hydroxyterminated dimethyl siloxane (dimethiconol), and modified hydrogen alkylpolysiloxanes. Preferred silicones comprise cationic and amphotericsilicones, polysiloxanes, and polysiloxanes having hydrogen-bondingfunctional groups consisting of amino, carboxyl, hydroxyl, ether,polyether, aldehyde, ketone, amide, ester, and thiol groups. Suchpolysiloxanes include, but are not limited to, polyether-modifiedpolysiloxanes, amino-modified polysiloxanes, epoxy-modifiedpolysiloxanes, polyhydrido-modified polysiloxanes, phenolderivative-modified polysiloxanes, ABA-type polysiloxanes, includingthose available from OSi Specialties, Inc. (a division of WitcoCorporation), under the SILWET, NUWET, NUDRY, NUSOF, MAGNASOFT tradenamess. Preferred silicones may include polydimethylsiloxanes ofviscosity from about 100 centistokes (cs) to about 100,000 cs, andpreferably from about 200 cs to about 60,000 cs and/or silicone gums.These silicones can be used in emulsified form, which can beconveniently obtained directly from the suppliers. Examples of thesepreemulsified silicones are the 60% emulsion of polydimethylsiloxane(350 cs) sold by Dow Corning Corporation under the trade name DOWCORNING 1157 Fluid and the 50% emulsion of polydimethylsiloxane (10,000cs) sold by General Electric Company under the trade name GENERALELECTRIC 2140 silicones. Silicone foam suppressants can also be used.These are usually not emulsified and typically have viscosities fromabout 100 cs to about 10,000 cs, and preferably from about 200 cs toabout 5,000 cs. Very low levels can be used, typically from about 0.01%to about 1%, and preferably from about 0.02% to about 0.5%. Anotherpreferred foam suppressant is a silicone/silicate mixture, for example,DOW CORNING ANTIFOAM A.

Highly preferred materials of this class of silicones are those that donot cause any significant color change, nor impart any discoloration,such as graying or yellowing, to the fabrics to which they are applied,either during treatment followed by drying and/or curing, or after thedrying and/or curing step followed by normal exposure to the elements,such as air, moisture or sunlight exposure.

Nonionic Surfactant

The composition can contain a nonionic surfactant. When a nonionicsurfactant is added to the composition, it can typically be added at alevel from about 0.05% to about 30%, preferably from about 0.05% toabout 20%, and more preferably from about 0.1% to about 10% of thecomposition.

Suitable nonionic surfactants include addition products of alkoxylatingagents such as ethylene oxide (EO), propylene oxide (PO), isopropyleneoxide (IPO), or butylene oxide (BO), or a mixture thereof, with fattyalcohols, fatty acids, and fatty amines. Any of the alkoxylatedmaterials of the particular type described hereinafter can be used asthe nonionic surfactant. Preferably, the nonionic surfactant is selectedfrom the group consisting of alkylether carboxylate, alcohol ethoxylateor secondary alcohol ethoxylate, and alkyl phenyl ethoxylate or alkylaryl ethoxylate. These nonionic surfactants may also contain a mixtureof ethoxylate and propoxylate. Suitable alkylpolysaccharides for useherein are disclosed in U.S. Pat. No. 4,565,647 to Llenado andincorporated herein by reference, having a hydrophobic group containingfrom about 6 to about 30 carbon atoms, preferably from about 10 to about16 carbon atoms and a polysaccharide, e.g., a polyglycoside, hydrophilicgroup. Further examples of suitable surfactants are described inMcCutcheon's Vol. 1: Emulsifiers and Detergents, North American Ed.,McCutcheon Division, MC Publishing Co., 1995, which is incorporatedherein by reference.

Highly preferred materials of this class of nonionic surfactants arethose that do not cause any significant color change, nor impart anydiscoloration, such as graying or yellowing, to the fabrics to whichthey are applied, either during treatment followed by drying and/orcuring, or after the drying and/or curing step followed by normalexposure to the elements, such as air, moisture or sunlight exposure.

Cationic Surfactants

The composition of the present invention can contain a cationicsurfactant. When a cationic surfactant is added to the composition ofthe present invention, it can typically be added at a level from about0.05% to about 30%, preferably from about 0.05% to about 20%, and morepreferably from about 0.1% to about 10% of the composition.

The cationic surfactant can optionally be one or more fabric softeneractives. Preferred fabric softening actives according to the presentinvention include amines and quaternized amines. The following areexamples of preferred softener actives:N,N-di(tallowyl-oxy-ethyl)-N.N-dimethyl ammonium chloride;N,N-di(canolyl-oxy-ethyl)-N,N-dimethyl ammonium chloride;N,N-di(tallowyl-oxy-ethyl)-N-methyl, N-(2-hydroxyethyl)ammonium methylsulfate; N,N-di(canolyl-oxy-ethyl)-N-methyl, N-(2-hydroxyethyl)ammoniummethyl sulfate; N,N-di(tallowylamidoethyl)-N-methyl,N-(2-hydroxyethyl)ammonium methyl sulfate;N,N-di(2-tallowyloxy-2-oxo-ethyl)-N,N-dimethyl ammonium chloride;N,N-di(2-canolyloxy-2-oxo-ethyl)-N,N-dimethyl ammonium chloride;N,N-di(2-tallowyloxyethylcarbonyloxyethyl)-N,N-dimethyl ammoniumchloride; N,N-di(2-canolyloxyethylcarbonyloxyethyl)-N,N-dimethylammonium chloride;N-(2-tallowyloxy-2-ethyl)-N-(2-tallowyloxy-2-oxo-ethyl)-N,N-dimethylammonium chloride;N-(2-canolyloxy-2-ethyl)-N-(2-canolyloxy-2-oxo-ethyl)-N,N-dimethylammonium chloride, N,N,N-tri(tallowyl-oxy-ethyl)-N-methyl ammoniumchloride; N,N,N-tri(canolyl-oxy-ethyl)-N-methyl ammonium chloride;N-(2-tallowyloxy-2-oxoethyl)-N-(tallowyl)-N,N-dimethyl ammoniumchloride; N-(2-canolyloxy-2-oxoethyl)-N-(canolyl)-N,N-dimethyl ammoniumchloride; 1,2-ditallowyloxy-3-N,N,N-trimethylammoniopropane chloride;and 1,2-dicanolyloxy-3-N,N,N-trimethylammoniopropane chloride; andmixtures of the above actives. Particularly preferred isN,N-di(tallowyl-oxy-ethyl)-N,N-dimethyl ammonium chloride, where thetallow chains are at least partially unsaturated andN,N-di(canoloyl-oxy-ethyl)-N,N-dimethyl ammonium chloride,N,N-di(tallowyl-oxy-ethyl)-N-methyl, N-(2-hydroxyethyl)ammonium methylsulfate; N,N-di(canolyl-oxy-ethyl)-N-methyl, N-(2-hydroxyethyl)ammoniummethyl sulfate; and mixtures thereof. Additional fabric softening agentsuseful herein are described in U.S. Pat. No. 5,643,865 to Mermelstein etal., U.S. Pat. No. 5,622,925 to de Buzzaccarini et al., U.S. Pat. No.5,545,350 to Baker et al., U.S. Pat. No. 5,474, 690 to Wahl et al., U.S.Pat. No. 5,417,868 to Turner et al., U.S. Pat. No. 4,661,269 to Trinh etal., U.S. Pat. No. 4,439,335 to Burns, U.S. Pat. No. 4,401,578 toVerbruggen, U.S. Pat. No. 4,308,151 to Cambre, U.S. Pat. No. 4,237,016to Rudkin et al., U.S. Pat. No. 4,233,164 to Davis, U.S. Pat. No.4,045,361 to Watt et al., U.S. Pat. No. 3,974,076 to Wiersema et al.,U.S. Pat. No. 3,886,075 to Bemadino, U.S. Pat. No. 3,861,870 Edwards etal., and European Patent Application publication No. 472,178, byYamamura et al., all of said documents being incorporated herein byreference.

Other suitable cationic surfactants include ethoxylated quaternaryammonium surfactants. Some preferred ethoxylated quaternary ammoniumsurfactants include PEG-5 cocoammonium methosulfate; PEG-15 cocoammoniumchloride; PEG-15 oleoammonium chloride; and bis(polyethoxyethanol)tallow ammonium chloride. Further examples of suitable surfactants aredescribed in McCutcheon's Vol. 1: Emulsifiers and Detergents, NorthAmerican Ed., McCutcheon Division, MC Publishing Co., 1995, which isincorporated herein by reference.

The counterion to these cationic surfactants may be selected, withoutlimitation, from the group consisting of fluoride, chloride, bromide,iodide, chlorite, chlorate, hydroxide, hypophosphite, phosphite,phosphate, carbonate, formate, acetate, lactate, and other carboxylates,oxalate, methyl sulfate, ethyl sulfate, benzoate, and salicylate, andthe like. Highly preferred materials of this class of cationicsurfactants and their counterions are those that do not cause anysignificant color change, nor impart any discoloration, such as grayingor yellowing, to the fabrics to which they are applied, either duringtreatment followed by drying and/or curing, or after the drying and/orcuring step followed by normal exposure to the elements, such as air,moisture or sunlight exposure.

Amphoteric and Zwitterionic Surfactants

The composition of the present invention can contain amphoteric and/orzwitterionic surfactants. When an amphoteric or zwitterionic surfactantis added to the composition of the present invention, it can typicallybe added at a level from about 0.05% to about 30%, preferably from about0.05% to about 20%, and more preferably from about 0.1% to about 10% ofthe composition.

Suitable amphoteric surfactants include amine oxides having the formula(R₁)(R₂)(R₃)NO wherein each of R₁, R₂ and R₃ is independently asaturated substituted or unsubstituted, linear or branched hydrocarbonchains of from 1 to 30 carbon atoms. Preferred amine oxide surfactantsto be used according to the present invention include amine oxideshaving the formula (R₁)(R₂)(R₃)NO wherein R₁ is an hydrocarbon chaincomprising from 1 to 30 carbon atoms, preferably from 6 to 20, morepreferably from 8 to 16, further preferably from 8 to 12, and wherein R₂and R₃ are independently substituted or unsubstituted, linear orbranched hydrocarbon chains comprising from 1 to 4 carbon atoms,preferably from 1 to 3 carbon atoms, and more preferably are methylgroups. R₁ may be a saturated substituted or unsubstituted, linear orbranched hydrocarbon chain. Suitable amine oxides for use herein are,for instance, naturally derived hydrocarbon blends of C₈-C₁₀ amineoxides as well as C₁₂-C₁₆ amine oxides commercially available fromHoechst.

Suitable zwitterionic surfactants may contain both cationic and anionichydrophilic groups on the same molecule at a relatively wide pH range. Atypical cationic group is a quaternary ammonium group, although otherpositively charged groups like phosphonium, imidazolium and sulfoniumgroups can be used. Typical anionic hydrophilic groups are carboxylatesand sulfonates, although other groups like sulfates, phosphonates, andthe like can be used. A generic formula for some zwitterionicsurfactants that can be used herein is R₁—N′(R₂)(R₃)R₄X— wherein R₁ is ahydrophobic group; R₂ and R₃ are each C₁-C₄ alkyl, hydroxy alkyl orother substituted alkyl group which can also be joined to form ringstructures with the N; R₄ is a moiety joining the cationic nitrogen atomto the hydrophilic group and is typically an alkylene, hydroxy alkylene,or polyalkoxy group containing from 1 to 10 carbon atoms; and X is thehydrophilic group which is preferably a carboxylate or sulfonate group.Preferred hydrophobic groups R₁ are alkyl groups containing from 1 to24, preferably less than 18, and more preferably less than 16 carbonatoms. The hydrophobic group can contain unsaturation and/orsubstituents and/or linking groups such as aryl groups, amido groups,ester groups and the like. In general, the simple alkyl groups arepreferred for cost and stability reasons. Examples of amphotericsurfactants include alkylampho glycinates, and alkyl imino propionate.Highly preferred zwitterionic surfactants include betaine andsulphobetaine surfactants, derivatives thereof or mixtures thereof. Thebetaine or sulphobetaine surfactants are preferred herein as they areparticularly suitable for the cleaning of delicate materials, includingfine fabrics such as silk, wool and other naturally derived textilematerials. Betaine and sulphobetaine surfactants are also extremely mildto the skin and/or fabrics to be treated that come in contact with theusers skin.

Suitable betaine and sulphobetaine surfactants to be used herein includethe betaine/sulphobetaine and betaine-like detergents wherein themolecule contains both basic and acidic groups which form an inner saltgiving the molecule both cationic and anionic hydrophilic groups over abroad range of pH values. Some common examples of these detergents aredescribed in U.S. Pat. No. 2,082,275 to Daimler et al., U.S. Pat. No.2,702,279 to Funderburk et al., and U.S. Pat. No. 2,255,082 to Orthneret al., which are incorporated herein by reference. Further examples ofsuitable surfactants are described in McCutcheon's Vol. 1: Emulsifiersand Detergents, North American Ed., McCutcheon Division, MC PublishingCo., 1995, which is incorporated herein by reference.

Highly preferred materials of this class of amphoteric and zwitterionicsurfactants are those that do not cause any significant color change,nor impart any discoloration, such as graying or yellowing, to thefabrics to which they are applied, either during treatment followed bydrying and/or curing, or after the drying and/or curing step followed bynormal exposure to the elements, such as air, moisture or sunlightexposure.

Anionic Surfactants

The composition can contain an anionic surfactant. When an anionicsurfactant is added to the composition of the present invention, it cantypically be added at a level from about 0.05% to about 15%, preferablyfrom about 0.05% to about 5%, and more preferably from about 0.1% toabout 1% of the composition.

Suitable anionic surfactants include C₈-C₁₈ alkyl sulfonates, C₁₀-C₁₄linear or branched alkyl benzene sulfonates, C₁₀-C₁₄ alkyl sulfates andethoxysulfates (e.g., STEPANOLAMC from Stepan), and C₉-C₁₅ alkyl ethoxycarboxylates (NEODOX surfactants available from Shell ChemicalCorporation). Suitable commercially available sulfonates are availablefrom Stepan under the trade name BIO-TERGE PAS-88 as well as from theWitco Corporation under the trade name WITCONATE NAS-8(8), and HostapurSAS(E) from Hoechst Aktiengesellschaft, D-6230 Frankfurt, Germany.Anionic surfactants may be paired with organic counterions ormultivalent counterions in order to prevent interference with cationicspecies. Further examples of suitable surfactants are described inMcCutcheon's Vol. 1: Emulsifiers and Detergents, North American Ed.,McCutcheon Division, MC Publishing Co., 1995, which is incorporatedherein by reference.

Highly preferred materials of this class of anionic surfactants arethose that do not cause any significant color change, nor impart anydiscoloration, such as graying or yellowing, to the fabrics to whichthey are applied, either during treatment followed by drying and/orcuring, or after the drying and/or curing step followed by normalexposure to the elements, such as air, moisture or sunlight exposure.

Soil Release Agents

The composition can include a soil release agent which is present fromabout 0% to about 5%, preferably from about 0.05% to about 3%, and morepreferably from about 0.1% to about 2% of the composition. Polymericsoil release agents useful in the present invention include copolymericblocks of terephthalate and polyethylene oxide or polypropylene oxide,and the like. A preferred soil release agent is a copolymer havingblocks of terephthalate and polyethylene oxide. More specifically, thesepolymers may be comprised of repeating units of ethylene terephthalateand polyethylene oxide terephthalate at a molar ratio of ethyleneterephthalate units to polyethylene oxide terephthalate units from about25:75 to about 35:65, and the polyethylene oxide terephthalatecontaining polyethylene oxide blocks having molecular weights from about300 to about 2000. The molecular weight of this type of polymeric soilrelease agent can be in the range from about 5,000 to about 55,000.Suitable soil release agents are disclosed in U.S. Pat. No. 4,702,857 toGosselink; U.S. Pat. No. 4,711,730 to Gosselink et al.; U.S. Pat. No.4,713,194 to Gosselink; U.S. Pat. No. 4,877,896 to Maldonado et al.;U.S. Pat. No. 4,956,447 Gosselink et al.; and U.S. Pat. No. 4,749,596 toPo et al., all of which are incorporated herein by reference. Especiallydesirable optional ingredients are polymeric soil release agentscomprising block copolymers of polyalkylene terephthalate andpolyoxyethylene terephthalate, and block copolymers of polyalkyleneterephthalate and polyethylene glycol. The polyalkylene terephthalateblocks may preferably comprise ethylene and/or propylene groups. Manysuch soil release polymers are nonionic, for example, the nonionic soilrelease polymer described in U.S. Pat. No. 4,849,257 to Borcher, Sr., etal., which is incorporated herein by reference. The polymeric soilrelease agents useful in the present invention can include anionic andcationic polymeric soil release agents. Suitable anionic polymeric oroligomeric soil release agents are disclosed in U.S. Pat. No. 4,018,569to Chang, which is incorporated herein by reference. Other suitablepolymers are disclosed in U.S. Pat. No. 4,808,086 to Evans et al., whichis incorporated herein by reference. Highly preferred materials of thisclass of soil release polymers are those that do not cause anysignificant color change, nor impart any discoloration, such as grayingor yellowing, to the fabrics to which they are applied, either duringtreatment followed by drying and/or curing, or after the drying and/orcuring step followed by normal exposure to the elements, such as air,moisture or sunlight exposure.

Antistatic Agents

The composition can include antistatic agents, which can be present at alevel from about 0% to about 5%, preferably from about 0.005% to about5%, more preferably from about 0.05% to about 2%, and further preferablyfrom about 0.2% to about 1% of the composition. Preferred antistaticagents of the present invention include cationic surfactants, includingquaternary ammonium compounds such as alkyl benzyl dimethyl ammoniumchloride; dicoco quaternary ammonium chloride; coco dimethyl benzylammonium chloride; soya trimethyl quaternary ammonium chloride;hydrogenated tallow dimethyl benzyl ammonium chloride; and methyldihydrogenated tallow benzyl ammonium chloride. Other preferredantistatic agents of the present invention are alkyl imidazoliniumsalts. Other preferred antistatic agents are the ion pairs of, e.g.,anionic detergent surfactants and fatty amines, or quaternary ammoniumderivatives thereof, e.g., those disclosed in U.S. Pat. No. 4,756,850 toNayar, which is incorporated herein by reference. Other preferredantistatic agents are ethoxylated and/or propoxylated sugar derivatives.Preferred antistatic agents include monolauryl trimethyl ammoniumchloride, hydroxycetyl hydroxyethyl dimethyl ammonium chloride(available from Henkel Corporation under the trade name DEHYQUART E),and ethyl bis(polyethoxyethanol)alkyl ammonium ethyl sulfate (availablefrom Witco Corporation under the trade name VARIQUAT 66), polyethyleneglycols, polymeric quaternary ammonium salts (such as those availablefrom Rhône—Poulenc Corporation under the MIRAPOL trade name),quaternized polyethyleneimines, vinylpyrrolidone/methacrylamidopropyltrimethylammonium chloride copolymer (available from GAF Corporationunder the trade name GAFQUAT HS-100), triethonium hydrolyzed collagenethosulfate (available from Maybrook Inc. under the trade name QUAT-PROE), and mixtures thereof.

Highly preferred materials of this class of antistatic agents are thosethat do not cause any significant color change, nor impart anydiscoloration, such as graying or yellowing, to the fabrics to whichthey are applied, either during treatment followed by drying and/orcuring, or after the drying and/or curing step followed by normalexposure to the elements, such as air, moisture or sunlight exposure.

Fragrance

Perfumes or fragrance materials may be added to the composition. Theselection of the perfume or perfumes may be based upon the application,the desired effect on the consumer, and preferences of the formulator.The perfume selected for use in the compositions and formulations of thepresent invention may contain ingredients with odor characteristicswhich are preferred in order to provide a fresh impression on thesurface to which the composition is directed, for example, those whichprovide a fresh impression for fabrics. Such perfume may be preferablypresent at a level from about 0.01% to about 5%, preferably from about0.05% to about 3%, and more preferably from about 0.1% to about 2% ofthe total composition.

Preferably, the perfume may be composed of fragrance materials selectedfrom the group consisting of aromatic and aliphatic esters havingmolecular weights from about 130 to about 250; aliphatic and aromaticalcohols having molecular weights from about 90 to about 240; aliphaticketones having molecular weights from about 150 to about 260; aromaticketones having molecular weights from about 150 to about 270; aromaticand aliphatic lactones having molecular weights from about 130 to about290; aliphatic aldehydes having molecular weights from about 140 toabout 200; aromatic aldehydes having molecular weights from about 90 toabout 230; aliphatic and aromatic ethers having molecular weights fromabout 150 to about 270; and condensation products of aldehydes andamines having molecular weights from about 180 to about 320; andmixtures thereof. Examples of such perfumes or fragrance materialsinclude, but are not limited to: adoxal(2,6,10-trimethyl-9-undecen-1-al), allyl amyl glycolate, allylcyclohexane (allyl-3-cyclohexylpropionate), amyl acetate(3-methyl-1-butanol), amyl salicylate, anisic aldehyde(4-methoxybenzaldehyde), aurantiol (condensation product of methylanthranilate and hydroxycitronellal), bacdanol(2-ethyl-4-(2,2,3-trimethyl-3-cyclopenten-1-yl)-2-buten-1-ol),benzaldehyde, benzophenone, benzyl acetate, benzyl salicylate, damascone(1-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2-buten-1-one, 3-hexen-1-ol,buccoxime (1,5-dimethyl-oximebicyclo[3,2,1]octan-8-one), cedrol(octahydro-3,6,8,8-tetramethyl-1H-3A,-7-methanoazulen-6-ol), cetalox(dodecahydro-3A,6,-6,9A-tetramethylnaphtho[2,1]furan), cis-3-hexenylacetate, cis-3-hexenyl salicylate, citronellol (3,7-dimethyl-6-octenol),citronellyl nitrile (geranyl nitrile), clove stem oil, coumarin,cyclohexyl salicylate, cymal(2-methyl-3-(p-isopropylphenyl)-propionaldehyde), decyl aldehyde,damascone (1-(2,6,6-trimethyl-3-cyclohexen-1-yl)-2-buten-1-one),dihydromyrcenol (2,6-dimethyl-7-octan-2-ol), dimethyl benzyl carbinylacetate, ethyl vanillin, ethyl-2-methyl butyrate, ethylene brassylate(ethylene tridecan-1,13-dioate), eucalyptol (1,8-epoxy-p-menthane),eugenol (4-allyl-2-methoxyphenol), exaltolide (cyclopentadecanolide),floor acetate (dihydronorcyclopentadienyl acetate), florhydral(3-(3-isopropylphenyl)butanal), frutene (dihydronorcyclopentadienylpropionate), galaxolide(1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopent-gamma-2-benzopyrane),gamma-decalactone (4-N-heptyl-4-hydroaldehyde), cinnamic aldehyde, hexylsalicylate, hydroxyambran (2-cyclododecylpropanol), hydroxycitronellal,ionone (4-(2,6,6-trimethyl-1-cyclohexenyl-1-yl)-3-buten-2-one), ionone(4-(2,6,6-trimethyl-1-cyclohexene-1-yl)-3-butene-2-one), ionone(4-(2,6,6-trimethyl-2-methylcyclohexyl-1-yl)-3-methyl-3-buten-2-one),7-acetyl-1,2,3,4,5,6,7,8-octahydro-1,1,6,7tetramethylnaphthalene,isoeugenol (2-methoxy-4-(1-propenyl)-phenol), isojasmone(2-methyl-3-(2-pentenyl)-2-cyclopenten-1-one), koavone (acetyldiisoamylene), lauric aldehyde, lavandin, lavender, natural lemon CP(major component d-limonene), d-limonene/orange terpenes(1-methyl-4-isopropenyl-1-cyclohexene), linalool(3-hydroxy-3,7-dimethyl-1,6-octadiene), linalyl acetate(3-hydroxy-3,7-dimethyl-1,6-octadiene acetate), Irg 201(2,4-dihydroxy-3,6-dimethyl benzoic acid methyl ester), lyral(4-(4-hydroxy-4methyl-pentyl)-3-cyclohexene-1-carboxaldehyde), majantol(2,2-dimethyl-3-(3-methylphenyl)-propanol), mayol(4-(1-methylethyl)-cyclohexanemethanol), methyl anthranilate(methyl-2-aminobenzoate), methyl-alpha-naphthyl ketone, methyl cedrylone(methyl cedrenyl ketone), methyl chavicol (1-methyloxy-4,2-propen-1-ylbenzene), methyl dihydrojasmonate, methyl nonyl acetaldehyde, muskindanone (4-acetyl-6-tert-butyl-1,1-dimethylindane), nerol(2-cis-3,7-dimethyl-2,6-octadien-1-ol), nonalactone (4-hydroxynonanoicacid lactone), norlimbanol (1-(2,2,6-trimethyl-cyclohexyl)-3-hexanol),orange CP (major component d-limonene), para-tert-bucinal(2-methyl-3-(p-tert-butylphenyl)-propionaldehyde),p-hydroxyphenylbutanone, patchouli, phenyl acetaldehyde(1-oxo-2-phenylethane), phenyl acetaldehyde, dimethyl acetal, phenylethyl acetate, p-menth-1-en-8-ol, p-menth-1-en-1-ol, terpinyl acetatep-menth-1-en-8-yl acetate), tetrahydrolinalool (3,7-dimethyl-3-octanol),tetrahydromyrcenol (2,6-dimethyl-2-octanol), tonalid/musk plus(7-acetyl-1,1,3,4,4,6-hexamethyltetralin), undecalactone(4-N-heptyl-4-hydroxybutanoic acid lactone), undecavertol(4-methyl-3-decen-5-ol), undecanal, undecylenic aldehyde, vanillin(4-hydroxy-3-methoxybenzaldehyde), verdox (2-tert-butyl cyclohexylacetate), vertenex (4-tert-butyl cyclohexyl acetate), and mixturesthereof.

The selection of such perfumes and fragrance materials is well-known tothose of skill in the art, both for desired scent and appropriate scentimpact. For example, when high initial perfume odor impact on fabrics isdesired, it can be preferable to select a perfume containing perfumeingredients which are not too hydrophobic. The degree of hydrophobicityof a perfume ingredient can be correlated with its octanol/waterpartitioning coefficient P, the ratio between its equilibriumconcentration in octanol and in water. Thus, a perfume ingredient with agreater partitioning coefficient P is more hydrophobic and a perfumeingredient with a smaller partitioning coefficient P is morehydrophilic; a selection based on the application and intended effectmay be made accordingly. For example, in a fabric application, thepreferred perfume ingredients may have an octanol/water partitioningcoefficient P of about 1,000 or smaller.

Highly preferred materials of this class of fragrances and perfumes arethose that do not cause any significant color change, nor impart anydiscoloration, such as graying or yellowing, to the fabrics to whichthey are applied, either during treatment followed by drying and/orcuring, or after the drying and/or curing step followed by normalexposure to the elements, such as air, moisture or sunlight exposure.

Antimicrobials and Preservatives

Optionally, antimicrobials or preservatives can be added to the presentinvention. Typical concentrations for biocidal effectiveness of thesecompounds may range from about 0.001% to about 0.8%, preferably fromabout 0.005% to about 0.3%, and more preferably from about 0.01% to 0.2%of the usage composition. The corresponding concentrations for theconcentrated compositions are from about 0.003% to about 2%, preferablyfrom about 0.006% to about 1.2%, and more preferably from about 0.1% toabout 0.8% of the concentrated compositions.

Preservatives are especially preferred when organic compounds that aresubject to microorganisms are added to the compositions of the presentinvention, especially when they are used in aqueous compositions. Whensuch compounds are present, long term and even short-term storagestability of the compositions and formulations becomes an importantissue since contamination by certain microorganisms with subsequentmicrobial growth often results in an unsightly and/or malodoroussolution. Therefore, because microbial growth in these compositions andformulations is highly objectionable when it occurs, it is preferable toinclude a solubilized water-soluble, antimicrobial preservative, whichis effective for inhibiting and/or regulating microbial growth in orderto increase storage stability of the preferably clear and often aqueouscompositions and formulations of the present invention.

Typical microorganisms that can be found in laundry products includebacteria, for example, Bacillus thurigensis (cereus group) and Bacillussphaericus, and fungi, for example, Aspergillus ustus. Bacillussphaericus is one of the most numerous members of Bacillus species insoils. In addition, microorganisms such as Escherichia coli andPseudomonas aeruginosa are found in some water sources, and can beintroduced during the preparation of aqueous solutions of the presentinvention. It is preferable to use a broad spectrum preservative, forexample, one that is effective on both bacteria (both gram positive andgram negative) and fungi. A limited spectrum preservative, for example,one that is only effective on a single group of microorganisms, forexample, fungi, can be used in combination with a broad spectrumpreservative or other limited spectrum preservatives with complimentaryand/or supplementary activity. A mixture of broad spectrum preservativescan also be used. Antimicrobial preservatives useful in the presentinvention can be biocidal compounds, that is, substances that killmicroorganisms, or biostatic compounds, that is, substances that inhibitand/or regulate the growth of microorganisms. Preferred antimicrobialpreservatives include those that are water-soluble and are effective atlow levels. In general, the water-soluble preservatives that may be usedinclude organic sulfur compounds, halogenated compounds, cyclic organicnitrogen compounds, low molecular weight aldehydes, quaternarycompounds, dehydroacetic acid, phenyl and phenoxy compounds, andmixtures thereof. Examples of preservatives useful in the presentinvention include, but are not limited to, the short chain alkyl estersof p-hydroxybenzoic acid (commonly known as parabens);N-(4-chlorophenyl)-N-(3,4-dichlorophenyl) urea (also known as3,4,4-trichlorocarbanilide or triclocarban);2,4,4-trichloro-2′-hydroxydiphenyl ether, commonly known as triclosan);a mixture of about 77% 5-chloro-2-methyl-4-isothiazolin-3-one and about23% 2-methyl-4-isothiazolin-3-one, a broad spectrum preservativeavailable from the Rohm and Haas Company as a 1.5% aqueous solutionunder the trade name KATHON CG; 5-bromo-5-nitro-1,3-dioxane, availablefrom Henkel Corporation under the trade name BRONIDOX L;2-bromo-2-nitropropane-1,3-diol, available from Inolex Chemical Companyunder the trade name BRONOPOL;1,1-hexamethylenebis(5-p-(chlorophenyl)biguanide) (commonly known aschlorhexidine) and its salts, for example, with acetic and digluconicacids; a 95:5 mixture of1,3-bis(hydroxymethyl)-5,5-dimethyl-2,4-imidazolidinedione and3-butyl-2-iodopropynyl carbamate, available from Lonza Inc. under thetrade name GLYDANT Plus;N-[1,3-bis(hydroxymethyl)2,5-dioxo-4-imidazolidinyl]-N,N′-bis(hydroxy-methyl)urea, commonly known as diazolidinyl urea, available from SuttonLaboratories, Inc. under the trade name GERMALL II;N,N″-methylenebis-[N′-[1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl]urea](commonly known as imidazolidinyl urea), available, for example, from3V-Sigma under the trade name ABIOL, from Induchem under the trade nameUNICIDE U-13, and from Sutton Laboratories, Inc. under the trade nameGERMALL 115; polymethoxy bicyclic oxazolidine, available from HulsAmerica Inc. under the trade name NUOSEPT; formaldehyde; glutaraldehyde;polyaminopropyl biguanide, available from ICI Americas, Inc. under thetrade name COSMOCIL CQ or from Brooks Industries Inc. under the tradename MIKROKILL dehydroacetic acid; and mixtures thereof. In general,however, the preservative can be any organic preservative material whichis appropriate for the application, for example, in a laundryapplication such preservative will preferably not cause damage to fabricappearance, for example, discoloration, coloration, or bleaching of thefabric. If the antimicrobial preservative is included in thecompositions and formulations of the present invention, it is preferablypresent in an effective amount, wherein an “effective amount” means alevel sufficient to prevent spoilage or prevent growth of inadvertentlyadded microorganisms for a specific period of time. Preferred levels ofpreservative are from about 0.0001% to about 0.5%, more preferably fromabout 0.0002% to about 0.2%, further preferably from about 0.0003% toabout 0.1%, of the composition. Optionally, the preservative can be usedat a level which provides an antimicrobial effect on the treatedfabrics.

The composition may suitably use an optional solubilized, water-solubleantimicrobial active, useful in providing protection against organismsthat become attached to the treated material. The free, uncomplexedantimicrobial, e.g., antibacterial, active provides an optimumantibacterial performance. Sanitization of fabrics can be achieved bythe compositions of the present invention containing, antimicrobialmaterials, e.g., antibacterial halogenated compounds, quaternarycompounds, and phenolic compounds. Some of the more robust antimicrobialhalogenated compounds which can function as disinfectants/sanitizers aswell as finish product preservatives, and are useful in the compositionsof the present invention include 1,1′-hexamethylenebis(5-(p-chlorophenyl)biguanide), commonly known as chlorhexidine, andits salts, e.g., with hydrochloric, acetic and gluconic acids. Thedigluconate salt is highly water-soluble, about 70% in water, and thediacetate salt has a solubility of about 1.8% in water. Whenchlorhexidine is used as a sanitizer in the present invention it cantypically be present at a level from about 0.001% to about 1.0%,preferably from about 0.002% to about 0.3%, and more preferably fromabout 0.01% to about 0.1%, by weight of the usage composition. In somecases, a level from about 1% to about 2% may be needed for virucidalactivity. Other useful biguanide compounds include COSMOCI, CQ, VANTOCILIB, including poly(hexamethylene biguanide)hydrochloride. Other usefulcationic antimicrobial agents include the bis-biguanide alkanes. Usablewater soluble salts of the above are chlorides, bromides, sulfates,alkyl sulfonates such as methyl sulfonate and ethyl sulfonate,phenylsulfonates such as p-methylphenyl sulfonates, nitrates, acetates,gluconates, and the like. Non-limiting examples of useful quaternarycompounds include: (1) benzalkonium chlorides and/or substitutedbenzalkonium chlorides such as commercially available BARQUAT (availablefrom Lonza), MAQUAT (available from Mason), VARIQUAT (available fromWitco/Sherex), and HYAMINE (available from Lonza); (2) dialkylquaternary such as BARDAC products of Lonza, (3)N-(3-chloroallyl)hexaminium chlorides such as DOWICIDE and DOWICILavailable from Dow; (4) benzethonium chloride such as HYAMINE 1622 fromRohm & Haas; (5) methylbenzethonium chloride represented by HYAMINE 1O×supplied by Rohm & Haas, (6) cetylpyridinium chloride such as Cepacolchloride available from of Merrell Labs.

Preferred antimicrobial compounds for use herein include quaternaryammonium compounds containing alkyl or substituted alkyl groups, alkylamide and carboxylic acid groups, ether groups, unsaturated alkylgroups, and cyclic quaternary ammonium compounds, which can bechlorides, dichlorides, bromides, methylsulphates, chlorophenates,cylcohexylsulphamates or salts of the other acids. Among the usefulcyclic quaternary ammonium compounds are the following: -alkylpyridiniumchlorides and/or sulphates, the alkyl group being preferably cetyl,dodecyl or hexadecyl group; -alkylisoquinolyl chlorides and/or bromides,the alkyl group being preferably dodecyl group. Particularly suitablequaternary ammonium compounds for use herein include alkyl dimethylbenzyl ammonium chloride, octyl decyl dimethyl ammonium chloride,dioctyl dimethyl ammonium chloride, didecyl dimethyl ammonium chloride,alkyl dimethyl ammonium saccharinate, cetylpyridinium and mixturesthereof.

Highly preferred materials of this class of antimicrobials andpreservatives are those that do not cause any significant color change,nor impart any discoloration, such as graying or yellowing, to thefabrics to which they are applied, either during treatment followed bydrying and/or curing, or after the drying and/or curing step followed bynormal exposure to the elements, such as air, moisture or sunlightexposure.

Dyes and Colorants

Optionally, dyes and colorants can be added to the present invention.Typical concentrations of these compounds may range from about 0.001% toabout 0.8%, preferably from about 0.005% to about 0.3%, and morepreferably from about 0.01% to 0.2% of the usage composition.

Colorants and dyes, especially bluing agents, can be optionally added tothe compositions of the present invention for visual appeal andperformance impression. When colorants are used, they may be used atextremely low levels to avoid fabric staining. Preferred colorants foruse in the present compositions include highly water-soluble dyes, forexample, LIQUITINT dyes available from Milliken Chemical Company.Non-limiting examples of suitable dyes are LIQUITINT Blue HP, LIQUITINTBlue 65, LIQUITINT Patent Blue, LIQUITINT Royal Blue, LIQUITINTExperimental Yellow 8949-43, LIQUITINT Green HMC, LIQUITINT Yellow II,and mixtures thereof. Any dye can be used in the compositions of thepresent invention, but nonionic dyes are preferred to decreaseinteraction with the zeta potential modifier and/or with the dyetransfer inhibitor employed in combination with the inventivecompositions. Useful acid dyes include: Polar Brilliant Blue and D&CYellow #10, both supplied by Hilton Davis Chemical Company. NonionicLIQUITINT dyes supplied by Milliken Chemical Company are also useful.

Suitable colors include, but are not limited to, Acid Black 1, Acid Blue3, Acid Blue 9 Aluminum Lake, Acid Blue 74, Acid Green 1, Acid Orange 6,Acid Red 14 Aluminum Lake, Acid Red 27, Acid Red 27 Aluminum Lake, AcidRed 51, Acid Violet 9, Acid Yellow 3, Acid Yellow 3 Aluminum Lake, AcidYellow 73, Aluminum Powder, Basic Blue 6, Basic Yellow 11, Carotene,Brilliant Black 1, Bromocresol Green, Chromium Oxide Greens, Curry Red,D&C Blue No. 1 Aluminum Lake, D&C Blue No. 4, D&C Brown No. 1, D&C GreenNo. 3 Aluminum Lake, D&C Green No. 5, D&C Orange No. 4 Aluminum Lake,D&C Red No. 6, D&C Red No. 6 Aluminum Lake, D&C Violet No. 2, D&C YellowNo. 7, D&C Yellow No. 11, D&C Blue No. 1, FD&C Yellow No. 5 AluminumLake, iron oxides, Pigment Orange 5, Pigment Red 83, Pigment Yellow 73,Solvent Orange 1, Solvent Yellow 18, ultramarines, and zinc stearate.

Highly preferred materials of this class of dyes and colorants are thosethat do not effectively bind to or permanently dye or color fabricstreated by use of the invention compositions, nor cause any significantcolor change, nor impart any discoloration, such as graying oryellowing, to the fabrics to which they are applied, either duringtreatment followed by drying and/or curing, or after the drying and/orcuring step followed by normal exposure to the elements, such as air,moisture or sunlight exposure.

Viscosity Control Agents

Optionally added viscosity control agents can be organic or inorganic innature and may either lower or raise the viscosity of the formulation.Examples of organic viscosity modifiers to lower viscosity are arylcarboxylates and sulfonates (for example including, but not limited tobenzoate, 2-hydroxybenzoate, 2-aminobenzoate, benzenesulfonate,2-hydroxybenzenesulfonate, 2-aminobenzenesulfonate), fatty acids andesters, fatty alcohols, and water-miscible solvents such as short chainalcohols. Examples of inorganic viscosity control agents arewater-soluble ionizable salts. A wide variety of ionizable salts can beused. Examples of suitable salts are the halides and acetates ofammonium ion and the group IA and IIA metals of the Periodic Table ofthe Elements, for example, calcium chloride, lithium chloride. sodiumchloride, potassium chloride, magnesium chloride, ammonium chloride,sodium bromide, potassium bromide, calcium bromide, magnesium bromide,ammonium bromide, sodium iodide, potassium iodide, calcium iodide,magnesium iodide, ammonium iodide, sodium acetate, potassium acetate, ormixtures thereof. Calcium chloride is preferred. The ionizable salts areparticularly useful during the process of mixing the ingredients to makethe compositions herein, and later to obtain the desired viscosity. Theamount of ionizable salts used depends on the amount of activeingredients used in the compositions and can be adjusted according tothe desire of the formulator. Typical levels of salts used to controlthe composition viscosity are from 0 to about 10%, preferably from about0.01% to about 6%, and more preferably from about 0.02% to about 3% ofthe composition.

Viscosity modifiers (raising) or thickening agents can be added toincrease the ability of the compositions to stably suspendwater-insoluble articles, for example, perfume microcapsules. Suchmaterials include hydroxypropyl substituted guar gum (such as thatavailable from Rhône-Poulenc Corporation under the trade name JAGUARHP200), polyethylene glycol (such as that available from Union CarbideCorporation under the trade name CARBOWAX 20M), hydrophobic modifiedhydroxyethylcellulose (such as that available from the Aqualon Companyunder the trade name NATROSOL Plus), and/or organophilic clays (forexample, hectorite and/or bentonite clays such as those available fromthe Rheox Company under the trade name BENTONE 27, 34 and 38 or fromSouthern Clay Products under the trade name BENTOLITE L; and thosedescribed in U.S. Pat. No. 4,103,047 to Zaki, et al., which is hereinincorporated by reference). These viscosity raisers (thickeners) cantypically be used at levels from about 0.5% to about 30%, preferablyfrom about 1% to about 5%, more preferably from about 1.5% to about3.5%, and further preferably from about 2% to about 3%, of thecomposition.

Highly preferred materials of this class of thickeners and viscositycontrol and viscosity modifiers are those that do not cause anysignificant color change, nor impart any discoloration, such as grayingor yellowing, to the fabrics to which they are applied, either duringtreatment followed by drying and/or curing, or after the drying and/orcuring step followed by normal exposure to the elements, such as air,moisture or sunlight exposure.

Pearlizing and Opacifying Agents

Examples of pearlizing or opacifing agents that can optionally be addedto the compositions of this invention include, but are not restrictedto, glycol distearate, propylene glycol distearate, and glycol stearate.Some of these products are available from Witco Corporation under theKEMESTER trade name.

Highly preferred materials of this class of pearlizing and opacifyingagents are those that do bind to treated fabrics, nor cause anysignificant color change, nor impart any discoloration, such aswhitening, graying or yellowing, to the fabrics to which they areapplied, either during treatment followed by drying and/or curing, orafter the drying and/or curing step followed by normal exposure to theelements, such as air, moisture or sunlight exposure.

Antioxidants and Sunscreen Materials

Examples of antioxidants that can optionally be added to thecompositions of this invention are propyl gallate, available fromEastman Chemical Products, Inc. under the trade names TENOX PG and TENOXS-1, and dibutylated hydroxytoluene, available from UOP Inc. under thetrade name SUSTANE BHT. Also preferred are antioxidants for providingsun-fade protection for fabrics treated with the composition of thepresent invention, such antioxidants being described in EP0773982, andincorporated herein by reference. Preferred antioxidants include2-(N-methyl-N-cocoamino)ethyl-3′,5′-di-tert-butyl-4′-hydroxybenzoate;2-(N,N-dimethyl-amino)ethyl-3′,5′-di-tert-butyl-4′-hydroxybenzoate;2-(N-methyl-N-cocoamino)ethyl-3′,4′,5′-trihydroxybenzoate; and mixturesthereof, more preferably2-(N-methyl-N-cocoamino)ethyl-3′,5′-di-tert-butyl-4′-hydroxy benzoate.Of these compounds, the butylated derivatives are preferred in thecompositions of the present invention because tri-hydroxybenzoates havea tendency to discolor upon exposure to light. The antioxidant compoundsof the present invention demonstrate light stability in the compositionsof the present invention. “Light stable” means that the antioxidantcompounds in the compositions of the present invention do not discolorwhen exposed to either sunlight or simulated sunlight for approximately2 to 60 hours at a temperature of from about 25° C. to about 45° C.Antioxidant compounds and free radical scavengers can generally protectdyes from degradation by first preventing the generation of singleoxygen and peroxy radicals, and thereafter terminating the degradationpathways. Not to be limited by theory, a general discussion of the modeof action for antioxidants and free radical scavengers is disclosed inKirk Othmer, The Encyclopedia of Chemical Technology, Volume 3, pages128-148, Third Edition (1978) which is incorporated herein by reference.

Compositions of the present invention may comprise an organic sunscreen.Suitable sunscreens can have UVA absorbing properties, UVB absorbingproperties, or a combination of both. The compositions of the presentinvention may preferably comprise a UVA absorbing sunscreen actives thatabsorb UV radiation having a wavelength from about 320 nm to about 400nm. Suitable UVA absorbing sunscreen actives include dibenzoylmethanederivatives, anthranilate derivatives such as methylanthranilate andhomomethyl-1-N-acetylanthranilate, and mixtures thereof. Examples ofdibenzoylmethane sunscreen actives are described in U.S. Pat. No.4,387,089 to De Polo; and in Sunscreens: Development, Evaluation, andRegulatory Aspects edited by N. J. Lowe and N. A. Shaath, Marcel Dekker,Inc (1990), which are incorporated herein by reference. The UVAabsorbing sunscreen active is preferably present in an amount to providebroad-spectrum UVA protection either independently, or in combinationwith, other UV protective actives that may be present in thecomposition. Preferred UVA sunscreen actives include dibenzoylmethanesunscreen actives and their derivatives. They include, but are notlimited to, those selected from 2-methyldibenzoylmethane,4-methyldibenzoylmethane, 4-isopropyldibenzoylmethane,4-tert-butyldibenzoylmethane, 2,4-dimethyldibenzoylmethane,2,5-dimethyldibenzoylmethane,4,4′-diisopropylbenzoylmethane,4-(1,1-dimethylethyl)-4′-methoxydibenzoylmethane,2-methyl-5-isopropyl-4′-methoxydibenzoylmethane,2-methyl-5-tert-butyl-4′-methoxydibenzoylmethane,2,4-dimethyl-4′-methoxydibenzoylmethane,2,6-dimethyl-4′-tert-butyl-4′-methoxydibenzoylmethane, and mixturesthereof. Preferred dibenzoyl sunscreen actives include those selectedfrom 4-(1,1-dimethylethyl)-4′-methoxydibenzoylmethane,4-isopropyldibenzoylmethane, and mixtures thereof. A more preferredsunscreen active is 4-(1,1-dimethylethyl)-4′-methoxydibenzoylmethane,which is also known as butylethoxydibenzoylmethane or Avobenzone, iscommercially available under the names of PARSOL 1789 from GivaudanRoure (International) S. A. (Basel, Switzerland) and EUSOLEX 9020 fromMerck & Co., Inc (Whitehouse Station, N.J.). The sunscreen4-isopropyldibenzoylmethane, which is also known asisopropyldibenzoylmethane, is commercially available from Merck underthe name of EUSOLEX 8020. The compositions of the present invention maypreferably further comprise a UVB sunscreen active that absorbs UVradiation having a wavelength of from about 290 nm to about 320 nm. Thecompositions may preferably comprise an amount of the UVB sunscreenactive that is safe and effective to provide UVB protection eitherindependently, or in combination with, other UV protective actives thatmay be present in the compositions. The compositions preferably comprisefrom about 0.1% to about 16%, more preferably from about 0.1% to about12%, and further preferably from about 0.5% to about 8% by weight, ofUVB absorbing organic sunscreen. A wide variety of UVB sunscreen activesare suitable for use herein. Nonlimiting examples of such organicsunscreen actives are described in U.S. Pat. No. 5,087,372 to Toyomotand U.S. Pat. Nos. 5,073,371 and 5,073,372 both to Turner et al, whichare incorporated herein by reference. Preferred UVB sunscreen activesare selected from 2-ethylhexyl-2-cyano-3,3-diphenylacrylate (referred toas octocrylene), 2-phenyl-benzimidazole-5-sulphonic acid (PBSA),cinnamates and their derivatives such as 2-ethylhexyl-p-methoxycinnamateand octyl-p-methoxycinnamate, TEA salicylate, octyldimethyl PABA,camphor derivatives and their derivatives, and mixtures thereof.Preferred organic sunscreen actives include2-ethylhexyl-2-cyano-3,3-diphenylacrylate (commonly named octocrylene),2-phenyl-benzimidazole-5-sulphonic acid (PBSA),octyl-p-methoxycinnamate, and mixtures thereof. Salt and acidneutralized forms of the acidic sunscreens are also useful.

An agent may also be added to any of the compositions useful in thepresent invention to stabilize the UVA sunscreen and to prevent it fromphoto-degrading on exposure to UV radiation and thereby maintaining itsUVA protection efficacy. Wide ranges of compounds have been cited asproviding these stabilizing properties and should be chosen tocompliment both the UVA sunscreen and the composition as a whole.Suitable stabilizing agents include, but are not limited to, thosedescribed in U.S. Pat. No. 5,972,316 to Robinson; U.S. Pat. No.5,968,485 to Robinson; U.S. Pat. No. 5,935,556 to Tanner et al.; andU.S. Pat. No. 5,827,508 Tanner et al. which are incorporated herein byreference. Preferred examples of stabilizing agents for use in thepresent invention include 2-ethylhexyl-2-cyano-3,3-diphenylacrylate(referred to as octocrylene), ethyl-2-cyano-3,3-diphenylacrylate,2-ethylhexyl-3,3-diphenylacrylate, ethyl-3,3-bis(4-methoxyphenyl)acrylate, and mixtures thereof.

Highly preferred materials of this class of antioxidants and sunscreenactives are those that do not cause any significant color change, norimpart any discoloration, such as graying or yellowing, to the fabricsto which they are applied, either during treatment followed by dryingand/or curing, or after the drying and/or curing step followed by normalexposure to the elements, such as air, moisture or sunlight exposure.

The composition of the present invention may preferably deposit fromabout 0.1 mg/g fabric to about 5 mg/g fabric of the sun-fade actives toreduce the sun fading of the fabric. Treatment of fabric withcompositions of the present invention repeatedly, may result in higherdeposition levels, which contributes even further to the sun-fadingprotection benefit.

Dye Transfer Inhibitors and Dye Fixatives

The composition can comprise from about 0.001% to about 20%, preferablyfrom about 0.5% preferably to about 10%, and more preferably from about1% to about 5% of one or more dye transfer inhibitors or dye fixingagents.

Compositions and formulations of the present invention can containethoxylated amines, amphoterics, betaines, polymers such aspolyvinylpyrrolidone, and other ingredients that inhibit dye transfer.Optional dye fixing agents can be cationic, and based on quaternizednitrogen compounds or on nitrogen compounds having a strong cationiccharge which is formed in situ under the conditions of usage. Cationicfixatives are available under various trade names from severalsuppliers. Representative examples include: CROSCOLOR PMF (July 1981,Code No. 7894) and CROSCOLOR NOFF (January 1988, Code No. 8544) exCrosfield; INDOSOL E-50 (Feb. 27, 1984, Ref. No. 6008.35.84;polyethyleneamine-based) ex Sandoz; SANDOFIX TPS, ex Sandoz, is apreferred dye fixative for use herein. Additional non-limiting examplesinclude SANDOFIX SWE (a cationic resinous compound) from Sandoz, REWINSRF, REWIN SRF-O and REWIN DWR Crochet-Beitlich GMBH; Tinofix ECO,Tinofix FRD and Solvent from Ciba-Geigy. Other cationic dye fixingagents are described in “After treatments for Improving the Fastness ofDyes on Textile Fibres”, Christopher C. Cook, Rev. Prog. Coloration,Vol. XH, (1982). Dye fixing agents suitable for use in the presentinvention include ammonium compounds such as fatty acid-diaminecondensates, inter alia, the hydrochloride, acetate, methosulphate andbenzyl hydrochloride salts of diamine esters. Non-limiting examplesinclude oleyldiethyl aminoethylamide, oleylmethyl diethylenediaminemethosulphate, and monostearylethylene diaminotrimethylammoniummethosulphate. In addition, the N-oxides of tertiary amines; derivativesof polymeric alkyldiamines, polyamine-cyanuric chloride condensates; andaminated glycerol dichlorohydrins are suitable for use as dye fixativesin the compositions of the present invention.

Highly preferred materials of this class of dye transfer inhibitors anddye fixatives are those that do not cause any significant color change,nor impart any discoloration, such as graying or yellowing, to thefabrics to which they are applied, either during treatment followed bydrying and/or curing, or after the drying and/or curing step followed bynormal exposure to the elements, such as air, moisture or sunlightexposure.

Chlorine Scavengers

The compositions of the present invention may optionally comprise fromabout 0.01%, preferably from about 0.02%, more preferably from about0.25% to about 15%, further preferably to about 10%, and yet morepreferably to about 5% of a chlorine scavenger. In cases wherein thecation portion and the anion portion of the non-polymeric scavenger eachreact with chlorine, the amount of scavenger can be adjusted to fit theneeds of the formulator. Suitable chlorine scavengers include ammoniumsalts having the formula: [(R)₃R′N]X wherein each R is independentlyhydrogen, C₁-C₄ alkyl, —C₁-C₄ substituted alkyl, and mixtures thereof;preferably R is hydrogen or methyl, more preferably hydrogen; R′ ishydrogen C₁-C₁₀ alkyl, C₁-C₁₀ substituted alkyl, and mixtures thereof.Preferably R is hydrogen and X is a compatible anion. Non-limitingexamples include chloride, bromide, citrate, and sulfate; preferably Xis chloride. Non-limiting examples of preferred chlorine scavengersinclude ammonium chloride, ammonium sulfate, and mixtures thereof,preferably ammonium chloride. Other chlorine scavengers include reducingagents such as thiosulfate.

Highly preferred materials of this class of chlorine scavengers arethose that do not cause any significant color change, nor impart anydiscoloration, such as graying or yellowing, to the fabrics to whichthey are applied, either during treatment followed by drying and/orcuring, or after the drying and/or curing step followed by normalexposure to the elements, such as air, moisture or sunlight exposure.

Wetting Agents

The present invention may contain as an optional ingredient from about0.005% to about 3.0%, and more preferably from about 0.03% to 1.0% of awetting agent. Such wetting agents may be selected from polyhydroxycompounds. Examples of water soluble polyhydroxy compounds that can beused as wetting agents in the present invention include glycerol,polyglycerols having a weight-average molecular weight from about 150 toabout 800, and polyoxyethylene glycols and polyoxypropylene glycolshaving a weight-average molecular weight from about 200 to about 4000,preferably from about 200 to about 1000, and more preferably from about200 to about 600. Polyoxyethylene glycols having a weight-averagemolecular weight from about 200 to about 600 are especially preferred.Mixtures of the above-described polyhydroxy compounds may also be used.A particularly preferred polyhydroxy compound is polyoxyethylene glycolhaving a weight-average molecular weight of about 400, available fromUnion Carbide Corporation under the trade name PEG-400.

Highly preferred materials of this class of wetting agents are thosethat do not cause any significant color change, nor impart anydiscoloration, such as graying or yellowing, to the fabrics to whichthey are applied, either during treatment followed by drying and/orcuring, or after the drying and/or curing step followed by normalexposure to the elements, such as air, moisture or sunlight exposure.

Electrolyte

Suitable inorganic salts for use as an optional electrolyte in thepresent compositions include MgI₂, MgBr₂, MgCl₂, Mg(NO₃)₂, Mg₃(PO₄)₂,Mg₂P₂O₇, MgSO₄, magnesium silicate, NaI, NaBr, NaCl, NaF, Na₃PO₄, NaSO₃,Na₂SO₄, Na₂SO₃, NaNO₃, Na₄P₂O₅, sodium silicate, sodium metasilicate,sodium tetrachloroaluminate, sodium tripolyphosphate (STPP), Na₂S₃O₇,sodium zirconate, CaF₂, CaCl₂, CaBr₂, CaI₂, CaSO₄, Ca(NO₃)₂, KI, KBr,KCl, KF, KNO₃, KIO₃, K₂SO₄, K₂SO₃, K₃PO₄, K₄(P₂O₇), potassiumpyrosulfate, potassium pyrosulfite, LiI, LiBr, LiCl, LiF, LiNO₃, AlF₃,AlCl₃, AlBr₃, AlI₃, Al₂(SO₄)₃, Al(PO₄), Al(NO₃)₃, aluminum silicate;including hydrates of these salts and including combinations of thesesalts or salts with mixed cations e.g. potassium aluminum AlK(SO₄)₂ andsalts with mixed anions, e.g. potassium tetrachloroaluminate and sodiumtetrafluoroaluminate. Salts incorporating cations from groups IIIa, IVa,Va, Vla, VIIa, VIII, Ib, and IIb on the periodic chart with atomicnumbers>13 are also useful in reducing dilution viscosity but lesspreferred due to their tendency to change oxidation states and thus theycan adversely affect the odor or color of the formulation or lowerweight efficiency. Salts with cations from group la or Ila with atomicnumbers>20 as well as salts with cations from the lanthanide or actinideseries are useful in reducing dilution viscosity, but less preferred dueto lower weight efficiency or toxicity. Mixtures of above salts are alsouseful.

Also preferred are quaternary ammonium salts, quaternary alkyl ammoniumsalts, quaternary dialkyl ammonium salts, quaternary trialkyl ammoniumsalts and quaternary tetraalkyl ammonium salts wherein the alkylsubstituent comprises a methyl, ethyl, propyl, butyl or higher C₅-C₁₂linear alkane radical, or combinations thereof. Organic salts useful inthis invention include, magnesium, sodium, lithium, potassium, zinc, andaluminum salts of the carboxylic acids including formate, acetate,proprionate, pelargonate, citrate, gluconate, lactate, aromatic acidse.g. benzoates, phenolate and substituted benzoates or phenolates, suchas phenolate, salicylate, polyaromatic acids terephthalates, andpolyacids e.g. oxylate, adipate, succinate, benzenedicarboxylate,benzenetricarboxylate. Other useful organic salts include carbonateand/or hydrogencarbonate (HCO₃ ⁻¹) when the pH is suitable, alkyl andaromatic sulfates and sulfonates, e.g., sodium methyl sulfate, benzenesulfonates and derivatives such as xylene sulfonate, and amino acidswhen the pH is suitable.

Electrolytes can comprise mixed salts of the above, salts neutralizedwith mixed cations such as potassium/sodium tartrate, partiallyneutralized salts such as sodium hydrogen tartrate or potassium hydrogenphthalate, and salts comprising one cation with mixed anions.

Highly preferred materials of this class of inorganic and organicelectrolytes are those that do not cause any significant color change,nor impart any discoloration, such as graying or yellowing, to thefabrics to which they are applied, either during treatment followed bydrying and/or curing, or after the drying and/or curing step followed bynormal exposure to the elements, such as air, moisture or sunlightexposure.

Generally, inorganic electrolytes are preferred over organicelectrolytes for better weight efficiency and lower costs. Mixtures ofinorganic and organic salts can be used. Typical levels of electrolytein the present compositions can be less than about 10%, preferably fromabout 0.5% to about 5%, more preferably from about 0.75% to about 2.5%,and further preferably from about 1% to about 2% of the inventivecomposition.

Enzymes

Additional desirable adjuncts may be enzymes (although it may bepreferred to also include an enzyme stabilizer). Proteases are oneespecially preferred class of enzymes. Typical examples of proteasesinclude Maxatase and Maxacal from Genencor International, Alcalase,Savinase, and Esperase, all available from Novozymes North America, Inc.See also U.S. Pat. No. 4,511,490 to Stanislowski et al., incorporatedherein by reference. Further suitable enzymes are amylases, which arecarbohydrate-hydrolyzing enzymes. It may also be preferred to includemixtures of amylases and proteases. Suitable amylases include Rapidase,from Societe Rapidase, Milezyme from Miles Laboratory, and Maxamyl fromInternational BioSynthetics. Still other suitable enzymes arecellulases, such as those described in U.S. Pat. No. 4,479,881 to Tai;U.S. Pat. No. 4,443,355 to Murata et al.; U.S. Pat. No. 4,435,307 toBarbesgaard et al.; and U.S. Pat. No. 3,983,082 to Ohya et al.,incorporated herein by reference. Yet other suitable enzymes arelipases, such as those described in U.S. Pat. No. 3,950,277 to Silver;U.S. Pat. No. 4,707,291 to Thom et al.; U.S. Pat. Nos. 5,296,161 and5,030,240 both to Wiersema et al.; and U.S. Pat. No. 5,108,457 toPoulose et al., incorporated herein by reference. The hydrolytic enzymemay be present in an amount of about 0.01-5%, more preferably about0.01-3%, and further preferably about 0.1-2% by weight of the detergent.Mixtures of any of the foregoing hydrolases are desirable, especiallyprotease/amylase blends.

Highly preferred materials of this class of enzymes are those that donot cause any significant residual odor or color change, nor impart anydiscoloration, such as graying or yellowing, to the fabrics to whichthey are applied, either during treatment followed by drying and/orcuring, or after the drying and/or curing step followed by normalexposure to the elements, such as air, moisture or sunlight exposure.

Bleaching Agents

The compositions of the present invention may optionally comprise fromabout 0.01%, preferably from about 0.02%, more preferably from about0.25% to about 15%, further preferably to about 10%, and yet morepreferably to about 5% of a bleaching agent. Suitable bleaching agentsinclude chlorine-releasing agents and peroxygen and peroxide-releasingcompounds. Alkali metal hypochlorites, including sodium or potassiumhypochlorite, are preferred chlorine releasing agents. Peroxygencompounds include alkali metal salts of percarbonate, perborate andperoxymonosulfate. Peroxide compounds, including hydrogen peroxide andcompounds generating hydrogen peroxide in solution, peroxyacids andprecursors to peroxyacids and peroxyimidic acids, and metal basedoxidants are also suitable. Suitable bleaching agents include preformedperacids and organic peroxides, including alkonyl and acyl peroxidessuch as tertiary butyl peroxide and benzoyl peroxide, and relatedalkonyl and acyl peroxide and superoxide derivatives of alkyls andarenes. Additionally, an appropriate bleach activator for the activeoxygen source or peroxide may be present, such those found in Arbogastet al., U.S. Pat. Nos. 5,739,327 and 5,741,437, Alvarez et al., U.S.Pat. No. 5,814,242, Deline et al., U.S. Pat. No. 5,877,315 and Casellaet al., U.S. Pat. No. 5,888,419 (which relate to cyanonitrilederivatives), Fong et al., U.S. Pat. Nos. 4,959,187 and 4,778,816,Bolkan et al., U.S. Pat. Nos. 5,112,514 and 5,002,691, and Brodbeck etal., U.S. Pat. No. 5,269,962 (which relate to alkanoyloxyacetylderivatives); and Mitchell et al., U.S. Pat. Nos. 5,234,616, 5,130,045and 5,130,044 (all of which relate to alkanoyloxyphenylsulfonates), allof which are incorporated herein by reference.

Highly preferred materials of this class of bleaching agents are thosethat do not cause any significant fabric damage or color change, norimpart any discoloration, such as graying or yellowing, to the fabricsto which they are applied, either during treatment followed by dryingand/or curing, or after the drying and/or curing step followed by normalexposure to the elements, such as air, moisture or sunlight exposure.

Brighteners

Optical brighteners, also referred to as fluorescent whitening agents orFWA's, have long been used to impart whitening to fabrics during thelaundering process. These fluorescent materials act by absorbingultraviolet wavelength light and emitting visible light, generally inthe color blue wavelength ranges. The FWA's settle out or deposit ontofabrics during the washing cycle. These include the stilbene, styrene,and naphthalene derivatives, which upon being impinged by ultravioletlight, emit or fluoresce light in the visible wavelength. These FWA's orbrighteners are useful for improving the appearance of fabrics, whichhave become dingy through repeated soilings and washings. PreferredFWA's are Blankophor BBH, RKH and BHC, from Bayer Corporation; andTinopal 5BMX-C, CBS-X and RBS, from Ciba-Geigy A.G. Fluorescentwhiteners most currently used in common laundry compositions generallyfall into a category referred to in the art as diaminostilbenedisulfonic acid-cyanuric chloride—or DASC—brighteners. These compoundshave the general formula

Examples of such DASC fluorescent whiteners include those sold by theCiba-Geigy Corporation under the trade name “Tinopal”, which aresubstituted stilbene 2,2′-disulfonic acid products, e.g., disodium4,4′-bis-((4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino)stilbene-2,2′-disulfonate(sold as Tinopal AMS); disodium4,4′-bis-((4-anilino-6-(N-2-hydroxyethyl-N-methylamino)-1,3,5-triazin-2-yl)amino)stilbene-2,2′-disulfonate(sold as Tinopal 5BM); disodium4,4′-bis-((4-anilino-6-(bis(2-hydroxyethyl)amino)-1,3,5-triazin-2-yl)amino)stilbene-2,2′-disulfonate(sold as Tinopal UNPA). Another example sold by Bayer Corporation isdisodium4,4′-bis-((4-anilino-6-methylamino)-1,3,5-triazin-2-yl)amino)stilbene-2,2′-disulfonate(sold as Phorwite HRS). Examples of suitable FWA's can be found in U.K.Patent Nos. 1,298,577, 2,076,011, 2,026,054, 2,026,566, 1,393,042; andU.S. Pat. No. 3,951,960 to Heath et al., U.S. Pat. No. 4,298,290 toBarnes et al., U.S. Pat. No. 3,993,659 to Meyer, U.S. Pat. No. 3,980,713to Matsunaga et al., and U.S. Pat. No. 3,627,758 to Weber et al.,incorporated herein by reference. See also, U.S. Pat. No. 4,900,468 toMitchell et al., column 5, line 66 to column 6, line 27, incorporatedherein by reference.

Also preferred are cationic, nonionic, and amphoteric FWA's, such asthose cited in U.S. Pat. Nos. 4,433,975, 4,432,886, 4,384,121, all toMeyer and 4,263,431 to Weber et al., and incorporated herein byreference. Further examples of suitable FWAs are described inMcCutcheon's Vol. 2: Functional Materials, North American Ed.,McCutcheon Division, MC Publishing Co., 1995, and Encyclopedia ofChemical Technology, 11^(th) volume, John Wiley & Sons, 1994, both ofwhich are incorporated herein by reference. Other examples offluorescent brightening materials suitable for the invention may befound in U.S. Pat. No. 6,251,303 to Bawendi et al.; U.S. Pat. No.6,127,549 to Hao et al.; U.S. Pat. No. 6,133,215 to Zelger et al.; U.S.Pat. No. 6,117,189 to Reinehr et al.; U.S. Pat. No. 6,120,704 toMartini; and U.S. Pat. No. 6,162,869 to Sharma et al., incorporatedherein by reference.

Highly preferred materials of this class of brighteners are those thatdo not cause any significant color change, nor impart any discoloration,such as graying or yellowing, to the fabrics to which they are applied,either during treatment followed by drying and/or curing, or after thedrying and/or curing step followed by normal exposure to the elements,such as air, moisture or sunlight exposure.

In selecting the various components for the fabric treatmentcomposition, most preferred are those that do not cause any significantdamage to treated fabrics or cause any significant color change, norimpart any discoloration, such as whitening, graying or yellowing, tothe fabrics to which they are applied, either during treatment followedby curing and/or drying, or after the curing and/or drying step followedby normal exposure to the elements, such as air, moisture or sunlightexposure. In particular, dye and colorants should not undergo anysignificant change from their original color and that do not stain ordiscolor the fabrics to which they are applied. Finally, bleachingagents should also not interfere with the function of stain releaseand/or fabric treatment.

Formulation

The compositions of the present invention and/or products incorporatingthe compositions may be in any form known to those skilled in the art.For example, the compositions and/or products may be in the form of anaerosol, liquid, granular, powder, tablet, solid, paste, foam and/or barcompositional form, or their encapsulated or coated forms. Thesecompositions and/or products may be neat or releasably absorbed oradsorbed on to a substrate, such as a woven or non-woven filamentsubstrate or packaged within a suitable article of manufacture forconvenient handling and dispensing. In this aspect of the invention, anarticle of manufacture may be provided that comprises the inventivecomposition and a spray dispensing device, an aerosol dispensing device,a standard bottle, a device to release the composition into the rinsewater, or a water soluble or water-insoluble sachet or package, or awater soluble or water-insoluble tablet or powder which delays releaseof the composition. A suitable film coating or encapsulate may also beemployed with either a liquid or solid form to provide for delayedrelease of the composition.

The spray dispenser can be any of the manually activated means forproducing a spray of liquid droplets as is known in the art, e.g.,trigger-type, pump-type, electrostatic spray device, non-aerosolself-pressurized, and aerosol-type spray devices. Regardless of thespecific spray means employed, it is preferred that at least about 70%,more preferably, at least about 80%, and further preferably at leastabout 90% of the droplets have a particle size smaller than about 200microns. Generally in instances where the potential for inhalation byusers may occur, it is most preferred that at least about 70%, morepreferably, at least about 80%, and further preferably at least about90% of the droplets have a particle size larger than about 5 microns.

Suitable trigger-type and pump-type spray devices are disclosed in U.S.Pat. No. 4,161,288 to McKinney; U.S. Pat. No. 4,558,821 to Tada et al.;U.S. Pat. No. 4,434,917 to Saito et al; and U.S. Pat. No. 4,819,835 toTasaki, all of said patents being incorporated herein by reference.Particularly preferred to be used herein are spray-type dispensers, suchas T 8500 commercially available from Continental Spray International,or other manufactures commonly known in the trade. In such a dispenser,the liquid composition can be divided in fine liquid droplets resultingin a spray that is directed onto the fabric surface to be treated.Suitably fine droplet sizes are achieved in such spray-type dispensersowing to the mechanism of operation in which the composition containedin the body of the dispenser is directed through the spray-typedispenser head via energy communicated to a pumping mechanism by theuser as the composition is forced against an obstacle, such as a screengrid or a cone or the like, which provides sufficient shock to thestream of the ejected liquid composition to atomize the liquidcomposition and provide the formation of liquid droplets of sufficientlysmall size.

Preferably, the aerosol-dispensing device of the present invention canbe any of the manually activated devices employing a pressurizedpropellant as known in the art. The aerosol dispenser may comprise acontainer which can be constructed of any of the conventional materialsemployed in fabricating aerosol containers. The dispenser should becapable of withstanding internal pressure in the range of about 20 toabout 120 psig, and preferably from about 20 to about 80 psig. Animportant characteristic concerning the dispenser is that it be providedwith a valve member which can permit the composition of the presentinvention to be dispensed in the form of a spray of very fine, or finelydivided, particles or droplets. The aerosol dispenser utilizes apressurized sealed container from which the composition of the presentinvention can be dispensed through a special actuator/valve assemblyunder pressure. The aerosol dispenser is pressurized by incorporatingtherein a gaseous component generally known as a propellant. Commonaerosol propellants, e.g., gaseous hydrocarbons such as isobutane, mixedhalogenated hydrocarbons, compressed air, nitrogen, inert gases, andcarbon dioxide, are suitable. Highly preferred are those propellantsthat do not present environmental concerns, such as compressed air,nitrogen, inert gases and carbon dioxide. A more complete description ofcommercially available aerosol-spray dispensers appears in U.S. Pat. No.3,436,772, to Stebbins and U.S. Pat. No. 3,600,325 to Kaufman et al.,which are incorporated herein by reference.

The spray dispenser can be a self-pressurized non-aerosol containerhaving a convoluted liner and an elastomeric sleeve. Theself-pressurized dispenser can be comprised of an assembly containing aliner and a sleeve comprising a thin, flexible radially expandableconvoluted plastic liner of about 0.010 (0.25 mm) to about 0.020 (0.50mm) inch thick, inside an essentially cylindrical elastomeric sleeve.The liner and sleeve assembly can be capable of holding a substantialquantity of the composition of the present invention and of causing theproduct to be dispensed. A description of such self-pressurized spraydispensers can be found in U.S. Pat. No. 5,111,971 to Winer and U.S.Pat. No. 5,232,126 to Winer which are incorporated herein by reference.Another suitable type of aerosol spray dispenser is one in which abarrier membrane separates the composition of the present invention fromthe propellant, as is disclosed in U.S. Pat. No. 4,260,110 to Werdingwhich is incorporated herein by reference. Such a dispenser is availablefrom EP Spray Systems, East Hanover, N.J.

Compositions of the present invention can be introduced into anautomatic washing machine during the rinse cycle of the machine usingrinse water additive dispensers that are well known in the art. Examplesinclude U.S. Pat. No. 5,768,918 to McKibben; U.S. Pat. No. 5,267,671 toBaginski et al.; U.S. Pat. No. 4,835,804 to Arnau-Munoz et al; U.S. Pat.No. 3,888,391 to Merz; and U.S. Pat. No. 3,108, 722 to Torongo, Jr., etal. Centrifugal force applied to a weight inside the dispenser during aspin cycle of an automatic clothes washer can cause a dispenser valve tobecome unseated so that additive from the dispenser may spill out of thedispenser and mix with rinse water that is added to the washer after thespin cycle. The dispenser can be normally inserted into the washerbefore the wash cycle begins. It should remain closed during theagitation of the wash cycle, yet reliably open during the first spincycle at the conclusion of the wash cycle in order to deliver thecomposition of the present invention at a point in time at which it willbe most effective.

Compositions of the present invention may be packaged in sachet form forconvenient dosing and handling by the user. The sachet may be of anysuitable shape and construction. Highly convenient shapes from theviewpoints of both manufacture and packing are square and rectangular,but any other desired shape is also suitable. Preferred sachets maycontain one, two, or more compartments. In a two-compartment sachet, thecompartments may, for example, be side-by-side, joined by a common seal,or back-to-back, joined by a common wall. The former arrangement is moresuitable if the two compartments are to be very different in size, andis also easier to make. Other multi-compartment arrangements aredisclosed in EP 236136A which is incorporated herein by reference. Therelative sizes of a single or multi-compartment sachet can be tailoredto match the proportions of the total contents to be accommodated ineach, and the optimum shape of the sachet chosen accordingly. Forexample, a single compartment or first compartment of a two-compartmentsachet can contain a relatively larger dosage of the composition of thecurrent invention for first treatment purposes, while the secondcompartment of a two-compartment sachet can contain a relatively smallerdosage for second or subsequent treatments, e.g., maintenance treatmentpurposes. The individual compartments of a two or multi-compartmentsachet can be easily separated from one another by the user for dosagecontrol when the contents comprise the same composition, enabling one,two or multiple compartments of the sachet to be used simultaneously,depending on the quantity of composition required. The secondcompartment of a two-compartment sachet may also contain ingredientsother than the inventive composition such as typical adjuncts, e.g.,other non-interfering ingredients being packed together with thecomposition of the current invention to provide a secondary benefit. Thetotal amount of the composition of the current invention to be packagedin the sachet product may vary, for example, from 10 to 150 g for a halfdose (20 to 300 g for a single dose), depending on the type and size ofwashing machine in which it is intended to be used, and the amount offabric that is intended to be treated. It is generally preferred thatthe sachet system be designed such that the contents will be released ator very shortly after the time of addition to the wash liquor or therinse liquor, depending upon which cycle of the wash the sachetcontaining the composition is added.

In an alternate embodiment, substantially complete delivery of thecontents is delayed to occur after at most 30 minutes, and morepreferably at most 25 minutes from the time of addition to the washliquor so that the contents of the sachet, which is introduced duringthe wash cycle of the washing machine, are not substantially releaseduntil at least the beginning of the rinse cycle of the washing machine.In this latter embodiment, it may be sometimes be desirable for thesachet systems to be designed such that at least one compartment orsachet thereof gives a delayed or controlled release of the contents.Suitable sachet structures are described in EP236136A, Anderson, et al.which is incorporated herein by reference.

In another embodiment, a water-insoluble sachet may be employed to holdthe fabric treatment composition. Such a water-insoluble sachet inaccordance with this embodiment for delivery of the composition may beof the closed, water-permeable type that relies on leaching out by thewash liquor for release of its contents. Alternatively, the sachet maybe provided with a seal that will open under washing machine conditions,by the action of water or of mechanical agitation or both; for example,as disclosed in EP312277A, Newbold, et al which is incorporated hereinby reference. Opening sachets may be of either water-permeable orwater-impermeable material, with water-permeable material beingpreferred. Suitable materials include paper, woven and non-wovenfabrics, films of natural or synthetic origin, or combinations thereofhaving a base weight between 1 and 100 g/m². Examples of these aredisclosed, for example, in EP246897A, Newbold, et al., which isincorporated herein by reference, and include polyamide, polyester,polyacrylate, cellulose acetate, polyethylene, polyvinyl chloride,polypropylene, cellulosic fibres, regenerated cellulosic fibres, andmixtures thereof. Preferred materials include cellulose/polyester mixfabrics, and Manila/viscose non-woven paper. It is especially preferredthat the seals are composed of a water-labile component and aheat-sealable component, as described in the before referencedEP246897A. These seals are sensitive at wash temperatures to thecombination of water and mechanical agitation encountered in the washingmachine environment, and open to release the sachet contents. It ispreferable for the sachet substrate itself to be one that dissolves ordisintegrates in the wash or rinse liquor. Especially preferred aresachets of water-soluble film. Such film materials are well-known in theart and include polyvinyl alcohols and partially hydrolyzed polyvinylacetates, alginates, cellulose ethers such as carboxymethylcellulose andmethyl cellulose, polyacrylates, polyethylene oxide, and combinations ofthese.

Also within the scope of the present invention are essentially dry meansof delivery of the compositions, including granular, powder and tabletforms of delivery, which may comprise the present composition and asuitable inert carrier in which the composition is reversibly compoundedsuch that the composition can be effectively released to the water whenthe granular, powder or tablet delivery means is brought into contactwith water, e.g., introduced into the wash water. In general, granularcompositions in accordance with the present invention can be made via avariety of methods including dry mixing, spray drying, agglomeration andgranulation. Tablets suitable for delivery of the composition of theinvention are well known in the art. Preferred are tablets of a sizethat are convenient for dosing in a washing machine. A preferred size isfrom 5 g to 200 g, more preferably from 5 g to 100 g, and the size canbe selected in accordance with the intended wash load and the design ofthe washing machine which is to be used. Also suitable are tabletscontaining two or more compositional zones, in which one zone maycomprise materials of the present invention and a second zone maycomprises a carrier comprising, but not limited to, adjunct materialsdescribed herein as suitable optional additives.

Methodology

As further described herein, fabric treatment compositions of thepresent invention (with or without at least one zeta potential modifier)can be deposited onto fabrics by a number of methods. Regardless of thetechnique employed, the critical feature is that the fluoropolymers andhydrophobic agents become deposited on the fabric surface. Subsequentheating above ambient temperatures but below 100° C. reversibly curesthe materials onto the fabric. However, excessive heating above 100° C.is to be avoided as the coating is then bound too tenaciously, leadingto decreased overall performance. Without being bound by theory, it isbelieved that the coating should be reversibly bound to effect releaseof stains and soils in the subsequent wash. One particularly preferredtechnique for consumers is to use the composition during laundering ofsoiled garments in conventional washing machines that have between a 25to 90 liter capacity when filled. The machines typically have afill/wash cycle of about 12 to 18 minutes duration (the initial volumeof water is added), a rinse cycle of about 2 to 5 minutes duration(sufficient water added to disperse the soil and detergent and otherlaundry additives, and a spin cycle of about 10 to 20 minutes duration.Between the wash, rinse and spin cycles the introduced water is drained.These selected cycles are to be distinguished from the overall washcycle itself, which encompasses all these sequential cycles or steps inthe complete wash process provided by a conventional automatic washingmachine.

When detergent is used, the inventive fabric treatment compositionpreferably includes at least one zeta potential modifier. In onevariation, a composition containing the fluoropolymer, hydrophobicagent, and zeta potential modifier is added anytime during the wash,e.g., along with the detergent at the washing cycle. Alternatively, acomposition containing the fluoropolymer and hydrophobic agent, but nota zeta potential modifier, is added with the detergent at the wash stageand thereafter, the zeta potential modifier, which is present incommercial fabric softener which contains cationic surfactant, becomesincorporated when the fabric softener is added to the washing machineduring the rinse cycle.

An effective amount of the composition of the present invention can besprayed or applied directly onto fabrics, particularly clothing. Whenthe composition is sprayed or applied directly onto fabric, an effectiveamount can be deposited onto the fabric without causing saturation ofthe fabric, typically from about 10% to about 85%, preferably from about15% to about 65%, and more preferably from about 20% to about 50%, byweight of the fabric. The amount of active that can be typically sprayedor applied directly onto the fabric is from about 0.1% to about 4%,preferably from about 0.2% to about 3%, and more preferably from about0.3% to about 2% of the fabric. The treated fabric can then betumble-dried in a standard clothes dryer and/or be ironed at the normalironing temperature to effect curing. Alternatively, the treated fabriccan be allowed to dry at ambient temperature, and the curing effected bya later heating step supplied by tumble-drying in a standard clothesdryer and/or ironed at the normal ironing temperature to effect curing.Alternatively, the treated fabric can be subjected to radiant energy,such as from the sun or infrared generating heat source, or to microwaveenergy, such as from a microwave dryer or microwave generating device,to effect curing of the applied composition. The treated fabric maysimultaneously be dried and heated in one step to effect curing of thecomposition on the fabric, or these operations optionally conducted inseparate steps, providing that the heating step is performed subsequentto the drying step if conducted separately.

Similarly, an effective amount of the composition can be aerosolized andapplied onto fabrics, particularly clothing, by means of a clothesrevitalizing device, such as the Whirlpool PERSONAL VALET systemdistributed by the Whirlpool Corporation, located at 2000 N. M-63,Benton Harbor, Mich. 49022-2692. When used in such a revitalizingdevice, the present composition can be combined with the revitalizingsolution normally employed in the device, being combined in any desiredratio by volume, or substituted entirely in place of the revitalizingsolution in order to effect treatment by use of composition of thepresent invention. An effective amount of the composition can beautomatically metered and aerosolized to effect its deposition onto theclothes contained within the revitalizing device. A drying stepsubsequently performed by the revitalizing device equipped with an airblower and source of heat, or a source of heated air automaticallyfollows the deposition step in order to complete treatment of thefabrics treated therein by the composition.

An effective amount of the present composition can also be soaked withfabric and then optionally washed before tumble drying, ironing ortumble-drying with optional ironing. In this aspect of the invention, anacceptable method of delivery is to add the composition to a separatesoak or treatment cycle performed in a washing machine or other suitablecontainer with or without agitation, such as hand-soaking of fabricsperformed in a sink, bucket or other such container, in which thecomposition of the present invention is added to water present withsufficient agitation to uniformly mix the composition with the water toinsure effective dispersal or dissolution of the composition to create auniform dispersion or solution for subsequent treatment of the fabrics.The order of mixing can be in any order, that is, the composition can beadded to water to effect dilution or water can be added to thecomposition to effect dilution after the composition is first introducedinto a washing machine or other suitable container. In this aspect ofthe invention, it is preferable that the composition is first mixed withwater to effect dilution in either scenario described above beforefabrics are exposed to the diluted composition in order to effect themost uniform treatment possible. Subsequent agitation of the dilutedcomposition and the fabrics is not generally required, although ifpreformed in a washing machine such agitation is generally providedduring the wash cycle. Some newer washing machines, however, provide fora timed soaking cycle with no agitation or with intermittent agitation.Following such treatments, fabrics can be drained of excess fluid andthen dried at a temperature less than 100° C. or optionally ironed atappropriate heat settings. An available option is to rinse with freshwater and/or wash the soaked fabrics, followed by tumble-drying at lessthan 100° C. or optionally ironing at appropriate heat settings.

In a further aspect of the invention, an effective amount of thecomposition can be added to the standard wash cycle of an automaticwashing machine and/or tumble-dried with optional ironing. It is also afurther option to add the invention to the standard wash cycle andoptionally rinse the fabrics prior to drying at less than 100° C. withoptional ironing. In these aspects of the invention, the composition maybe combined with any laundry additive, a detergent, completelysubstitute the detergent, or additional surfactant and builders added toreplace the detergent. In still another aspect of the invention, aneffective amount of the composition can be added to the standard rinseor separate part of the rinse cycle and/or tumble-dried with optionalironing. In this aspect of the invention, the composition may becombined with fabric softener or other rinse additive. When added to thewash or rinse cycle, a variety of addition devices may also be used.Many washing machines contain additive dispensers for laundry additivessuch as bleach or fabric softener. Other devices are known in the art toadd liquids to the wash cycle and/or to release them into the rinsecycle. In addition, water soluble pouches, nonwoven pouches, powders andtablets may be used.

Another embodiment of this invention is to treat a non-woven and/orwoven carrier article with the inventive composition. A furtherembodiment of this method is to add a fragrance to the carrier article.The carrier article is maintained in a moist state until added to thedryer with articles to be treated. It is preferred that the carrierarticle remains moist to facilitate the transfer of the composition tothe treated garments. This method is especially effective on delicatearticles including, but not limited to, silk, wool, linen whereexcessive heat may cause unwanted effects. Furthermore, this methodallows for the economical treatment of limited article loads or thosecontaining articles that should not be immersed or exposed to largevolumes of liquid.

When the present composition is added to the water present in a washingmachine or water present in some other suitable container for soaking orhand-washing of fabrics, an effective amount can be present to effectdeposition of the composition onto the fabric. The effective amount fora first treatment operation performed on a previously untreated fabricis typically from about 0.01% to about 10%, preferably from about 0.1%to about 5%, and more preferably from about 0.1% to about 2% of thecomposition to weight of the fabric present, wherein the ratio of theweight of dry fabric to the weight of water can be within a valuebetween a ratio of 1:100 and 1:1, respectively, of the ratio of the dryfabric weight to water weight present.

Following the first use of the composition of the present invention totreat a fabric, subsequent treatment of the fabric may be repeated insimilar fashion by any or all means described above using amounts of thecomposition at the preferred first treatment level, or more preferablyat a lower level, or maintenance level, sufficient to replenish materialon the fabric that may be lost due to wear or subsequent washing afterthe first treatment. In general, the level of the present compositionrequired to effectively treat a fabric in order to obtain desirablebenefits are greater for the first treatment using previously untreatedfabrics than for fabrics that have previously been treated using thepresent composition. Thus, subsequent, repeated treatments may generallyrequire significantly lower amounts of the composition to effectivelyreplenish material present on the fabric and to maintain the desirablebenefits obtained with the first treatment performed. Subsequent, ormaintenance, levels of the composition to be used to maintain thedesired benefits exhibited by previously treated fabric is typicallyfrom about 0.001% to about 5%, preferably from about 0.01% to about 2%,and more preferably from about 0.01% to about 1%, by weight of thecomposition to weight of the water present, wherein the ratio of theweight of dry fabric to the weight of water is preferably within a valuebetween a ratio of 1:100 and 1:1, respectively, of the ratio of the dryfabric weight to water weight present.

In still a further aspect of the invention, an effective amount of thecomposition can be added to a standard tumble-dryer with optionalironing. The composition may be used alone in any dryer delivery device,such as a nonwoven or sponge, or combined with fabric softener sheets,home dry cleaning devices, or other dryer device. Thus, another productform is a composition of the present invention (for example, a paste)suitable for coating onto, and delivery from, a substrate e.g. aflexible sheet or sponge or a suitable dispenser (such as a containerhaving apertures therein, for example) during a tumble dryer cycle. Amethod of use is to add or release the present composition into therinse water. When using an aqueous, solid, powder, foam, gel, pouch,tablet or sheet composition for treating fabric in the rinse step, aneffective amount of active of the inventive composition can optionallycontain fabric softener actives, perfume, electrolytes, chlorinescavenging agents, dye transfer inhibiting agents, dye fixative agents,phase stabilizers, chemical stabilizers including antioxidants,silicones, antimicrobial actives and/or preservatives, chelating agents,aminocarboxylate chelating agents, colorants, enzymes, brighteners, soilrelease agents, or mixtures thereof.

In still a further aspect of the invention, textiles treated with thecompositions of the present invention, particularly delicate fabrics,fabrics composed of natural fibers including, but not limited to wool orsilks, fabrics comprising inclusions, panels, or mixed woven ornon-woven compositions of heat sensitive natural or synthetic fibersincluding, but not limited to elastomeric materials such as rubber,SPANDEX, polyacetate, vinyl and nylon, may be so treated with thecompositions of the present invention by any of the means describedherein and allowed to dry under ambient conditions without theapplication of heat in order to prevent shrinking, dimensionaldistortion, wrinkling, creasing or other such deleterious effects thatmay be the result of applying heat to the wet textiles or heating thewet textiles sufficiently and for sufficient time to reduce them to anessentially dry state. Advantageously, such fabrics treated by thecompositions of the present invention and allowed to dry under ambientconditions, may subsequently be exposed to a heat source to effectcuring of the composition in order to obtain the full benefits of thetreatment. Such dry fabrics subsequently exposed to a heat sourceincluding, but not limited to heating in an automatic dryer, or contactwith steam, an iron, heated air from a blow dryer or other heat source,will not suffer from the deleterious effects noted herein that arecommonly seen when such delicate fabrics are dried by heating to drynessstarting from a substantially wet state. In this aspect of theinvention, the time of exposure to a heat source required by textilestreated by the composition of the present invention and allowed to dryunder ambient conditions, may be substantially reduced compared to thetime of exposure to a heat source required if such textiles treated bythe composition are brought to dryness directly from a wet state. Suchreduced time of exposure to a heat source is beneficial to reduce suchdeleterious effects noted above for many textiles, particularly thoselabeled as delicate or dry-clean only textiles.

Drying is a function of both temperature and time. Effective drying canbe achieved either by exposing treated garments to effectively higherdrying temperatures for a shorter time, or exposing treated garments toeffectively longer drying times with correspondingly lower dryingtemperatures. Preferred temperature and drying times are typicallyprovided by selected cycles of commercially available automatic dryersunder normal, permanent press and delicate cycle selections. Highlypreferred are cycle selections that provide a short cooling down periodwith continued tumbling to provide for reduced wrinkling of tumbledfabrics, although this is not a requirement for treatment of fabricstreated by the compositions of the present invention. Drying the fabricat a temperature above 45° C. is preferred.

The inventive composition can be applied by any of the above methods. Inone method of use, the composition can be first applied at a higheffective amount to give untreated fabrics the beneficial properties.Subsequent treatment of the same fabrics can be applied at a lowermaintenance effective amount. The compositions and articles of thepresent invention which contain a fabric improving active can be used totreat fabrics, garments, and the like to provide at least one of thefollowing fabric care benefits: wrinkle removal and/or reduction, fabricwear reduction, fabric pilling reduction, fabric color fading reduction,fabric soiling reduction, fabric shape retention, and/or fabricshrinkage reduction.

Concentrated compositions comprise a higher level of fabric active,typically from about 1% to about 99%, preferably from about 2% to about65%, and more preferably from about 3% to about 25%, by weight of theconcentrated fabric care composition. Concentrated compositions are usedin order to provide a less expensive product. The concentrated productcan be used undiluted or diluted by about 1,000,000%, more preferably byabout 25,000%, and even more preferably by about 5000% of thecomposition, by addition by weight of water.

The compositions of the present invention can also be used as ironingaids. An effective amount of the composition can be sprayed onto fabricand the fabric can be ironed at the normal ironing temperaturerecommended by the fabric label instruction guide. The fabric can besprayed with an effective amount of the composition, allowed to dry andthen ironed, or sprayed and ironed immediately to effect curing.

In a still further aspect of the invention, the present composition canbe sprayed and/or misted onto fabrics and/or entire garments in need ofde-wrinkling and/or other fabric care benefits in a manner such thatexcessive amounts of the fabric/garment care composition are preventedfrom being released to the open environment, provided in associationwith instructions for use to ensure that the consumer applies at leastan effective amount of fabric improving active and/or fabric carecomposition, to provide the desired garment care benefit. Any sprayingmechanism and/or misting mechanism can be used to apply the fabric carecomposition to fabrics and/or garments. One distribution of the garmentcare composition can be achieved by using a fog form. The meanparticulate diameter size of the fabric care composition fog can be fromabout 5 microns to about 200 microns, preferably from about 5 microns toabout 100 microns, and more preferably from about 10 microns to about 50microns. The wash or rinse water should contain typically from 0.01 to 1g of fluoropolymer per liter of wash water and from 0.01 to 1 g ofhydrophobic agent per liter of wash water. The especially preferredlevels of the inventive composition are from 0.01 to 0.5 g offluoropolymer per liter of wash water and from 0.01 to 0.5 g ofhydrophobic agent per liter of wash water. After treatment with aninitial level of the composition, a maintenance level of presentcomposition may be sufficient to maintain the properties. Desirablemaintenance levels of the inventive composition can be from 0.01 to 0.2g of fluoropolymer per liter of wash water and from 0.01 to 0.2 g ofhydrophobic agent per liter of wash water. Especially preferred levelsof the inventive composition might be from 0.01 to 0.1 g offluoropolymer per liter of wash water and from 0.01 to 0.1 g ofhydrophobic agent per liter of wash water.

The present invention also relates to a method of using an aqueous orsolid, preferably powder or granular, composition to treat the fabricsin the wash cycle, with such compositions comprising the fabricprotecting actives, and optionally, surfactants, builders, perfume,chlorine scavenging agents, dye transfer inhibiting agents, dye fixativeagents, dispersants, detergent enzymes, heavy metal chelating agents,suds suppressors, fabric softener actives, chemical stabilizersincluding antioxidants, silicones, antimicrobial actives and/orpreservatives, soil suspending agents, soil release agents, opticalbrighteners, colorants, and the like, or mixtures thereof. Depending onthe selection of optional ingredients, such as the level and type ofsurfactants, the present composition can be used as a wash additivecomposition (when the surfactant level is low) or as a laundrydetergent, which also has additional fabric care benefits. It ispreferable that the treatment be performed in accordance with theinstructions for use, to ensure that the consumer knows what benefitscan be achieved, and how best to obtain these benefits.

The present invention also relates to a method for treating fabric inthe drying step, comprising an effective amount of the fabric protectingactives of the present invention and, optionally, fabric softeneractives, distributing agent, perfume, fiber lubricants, fabric shaperetention polymers, lithium salts, potassium salts, phase stabilizers,chlorine scavenging agents, dye transfer inhibiting agents, dye fixativeagents, chemical stabilizers including antioxidants, silicones,antimicrobial actives and/or preservatives, heavy metal chelatingagents, aminocarboxylate chelating agents, enzymes, brighteners, soilrelease agents, and mixtures thereof. The present composition can take avariety of physical forms including liquid, foams, gel and solid formssuch as solid particulate forms. One method comprises the treatment offabric with a dryer-added fabric care composition in combination with adispensing means such as a flexible substrate which effectively releasesthe fabric care composition in an automatic tumble clothes dryer. Suchdispensing means can be designed for single usage or for multiple uses.Preferably, the composition is applied onto a sheet substrate to form adryer sheet product.

Another method comprises the treatment of fabrics with a fabricprotection composition of the invention dispensed from a sprayer at thebeginning of and/or during the drying cycle. It is preferable that thetreatment be performed in accordance with the instructions for use, toensure that the consumer knows what benefits can be achieved, and howbest to obtain these benefits.

The present invention also relates to a fabric care method of dippingand/or soaking fabrics before the fabrics are laundered, with a pre-washfabric care composition of the invention containing an effective amountof fabric protecting active and, optionally, surfactants, builders,perfume, chlorine scavenging agents, dye transfer inhibiting agents, dyefixative agents, dispersants, detergent enzymes, heavy metal chelatingagents, fabric softener actives, chemical stabilizers includingantioxidants, silicones, antimicrobial actives and/or preservatives,soil suspending agents, soil release agents, optical brighteners,colorants, and the like, or mixtures thereof. It is preferable that thetreatment be performed in accordance with the instructions for use, toensure that the consumer knows what benefits can be achieved, and howbest to obtain these benefits.

EXAMPLES

Experiments were conducted to demonstrate the superior effects of thefabric treatment composition and various application techniques that canbe employed to effectively deliver the treatment composition. The dataas presented in Tables 1-14 were based on compositions that did notinclude addition of a zeta potential modifier. Subsequent data in theseexamples were based on compositions with at least one zeta potentialmodifier. As is apparent, compositions with at least one zeta potentialmodifier were also very effective in imparting the beneficial protectiveproperties to the fabrics treated.

The examples in Table 1 illustrate compositions of the invention foraddition to the laundry. The concentrations are based on the addition of200 g of the inventive compositions to 2.72 kg of fabric in 69 liters ofwater in the wash or rinse cycle. Appropriate levels in compositions canbe determined for other addition amounts, other levels of fabric, orother wash or rinse volume levels. Examples are given in weight percentas is, i.e., weight percent of the materials as commercially supplied ascomponents in the final composition to achieve 100% by weight. TABLE 1Example 1 2 3 4 5 6 7 8 9 10 ZONYL 6700^(a) 34  5 63 27  4 50 20  3 3715 NALAN GN^(b) 34 63  5 27 50  4 20 37  3 15 Balance water and q.s.q.s. q.s. q.s. q.s. q.s. q.s. q.s. q.s. q.s. minors^(c)^(a)Cationic fluoropolymer emulsion from DuPont Chemicals (20 weight %active)^(b)Cationic paraffin wax emulsion from DuPont Chemicals (15 weight %active, melting point less than 75° C.)^(c)Minors include surfactants, fragrance, fragrance extenders,preservatives, preservatives, antistatic agents, dyes and colorants,viscosity control agents, antioxidants, antifoaming agents, emulsifiers,brighteners, opacifiers, freeze-thaw control agents, shrinkage controlagents, and mixtures thereof. (q.s. denotes “quantity sufficient” toachieve 100% by weight of the finished composition in each examplenoted.)

For fabrics that already exhibit some oil or water repellency, such asthose treated with the above compositions, or polyester,polyester/cotton, or other fabrics that are more hydrophobic thancotton, a reduced level of the inventive compositions can be used. Theexamples in Table 2 illustrate maintenance compositions of the inventionfor addition to the laundry. The concentrations are based on theaddition 200 g of the inventive compositions to 2.72 kg of fabric in 69liters of water in the wash or rinse cycle. TABLE 2 Example 11 12 13 1415 16 17 18 19 20 ZONYL 6700 7  3 11 5 1 9 4 1 7 .5 NALAN GN 7 11  3 5 91 4 7 1 .5 Balance water q.s. q.s. q.s. q.s. q.s. q.s. q.s. q.s. q.s.q.s. and minors

The examples in Table 3 illustrate compositions of the invention withadditional actives. The concentrations are based on the addition of 200g of the compositions to 2.72 kg of fabric in 69 liters of water in thewash or rinse cycle, or applying by one of the other suggested methods,such as spray application, presoak, or treatment in the dryer. TABLE 3Example 21 22 23 24 25 26 27 28 29 30 ZONYL 6700 10 10 10 10 10 10 3 5 520 Nalan GN 30 30 30 30 30 30 37 10 10 5 SURFONIC L12-2.6^(d) 5 TRITONN101^(e) 10 Amphoterge K2^(f) 5 ADOGEN 442^(g) 10 AMMONYX LO^(h) 2Magnesium chloride 2 Sodium Thiosulfate 0.6 Dibutylated 0.1hydroxytoluene^(i) Balance water and q.s. q.s. q.s. q.s. q.s. q.s. q.s.q.s. q.s. q.s. minors^(d)Alcohol ethoxylate, nonionic surfactant from Huntsman.^(e)Alcohol ethoxylate, nonionic surfactant from Union Carbide^(f)Imidazoline amphoteric surfactant from Lonza^(g)Dimethyl dehydrogenated tallow ammonium chloride, cationicsurfactant from Goldschmidt Chemical.^(h)Dimethyl amine oxide from Huntsman from Lonza.^(i)Antioxidant from UOP Inc.

The examples in Table 4 illustrate compositions of the invention withalternative fluoropolymers and hydrophobic agents. TABLE 4 31 32 33 3435 36 ZONYL 6700^(j) 0.5 1.0 ZONYL 8300^(k) 0.2 0.2 ZONYL NWG^(l) 1.52.0 MICHEM EMULSION 1.0 723^(m) MICHEM EMULSION 0.5 0.2 743^(n) FREEPEL1225^(o) 2.0 Balance water and minors q.s. q.s. q.s. q.s. q.s. q.s.^(j)Cationic fluoropolymer emulsion from DuPont Chemicals (20 weight %active)^(k)Fluoropolymer emulsion from DuPont Chemicals^(l)Fluoropolymer emulsion from DuPont Chemicals^(m)Non-cationic microcrystalline wax emulsion from Michelman^(n)Non-cationic microcrystalline wax emulsion from Michelman^(o)Cationic microcrystalline wax emulsion from NoveonContact Angle Measurements

Contact angles above 80 degrees that persist over relatively significantcontact times are good indicators of effective water or oil repellency.Cotton weave swatches (also referred to as “flags”) were treated withdifferent concentrations of ZONYL 6700 for 12 min in 1500 grams of waterat 25° C. in the Terg-O-Tometer, then squeezed and dried in the dryerfor 40 min at 150° F. (65.5° C.). The 5% treatment of fluoropolymersolution is 5% as is based on the weight of cotton fabric in thetreatment. This corresponds to a rinse cycle concentration of 1.23 gramsper liter of rinse water. The contact angle was measured by putting adrop of water on the flags and measuring after 30 sec and 2 min. Theresults shown in Table 5 indicate that the fluoropolymer, used by itselfeven at high levels, is not effective at either water or oil repellency.TABLE 5 Composition Contact Angle (water/oil) (weight %) 30 sec 2 min  0% ZONYL 6700 0/0 0/0   1% ZONYL 6700 0/0 0/0 2.5% ZONYL 6700 0/0 0/0  5% ZONYL 6700 0/0 0/0

Cotton weave swatches were then washed with different concentrations ofNALAN GN, an emulsified paraffin wax. The swatches were treated for 12min. at 25° C. in a Terg-O-Tometer, then squeezed to remove excesssolution and dried in the dryer for 40 min. at 150° F. (65.5° C.). The5% treatment of hydrophobic agent solution is 5% as is based on theweight of cotton fabric in the treatment. This corresponds to a rinsecycle concentration of 1.23 grams per liter of rinse water. The contactangle was measured by putting a drop of water on the flags and measuringafter 30 sec and 2 min. The results are shown in Table 6 and indicatethat the wax emulsion, by itself even at high concentrations, is noteffective at oil repellency. TABLE 6 Composition Contact angle(water/oil) (weight %) 30 sec 2 min   0% NALAN GN 0/0 0/0 1.0% NALAN GN0/0 0/0 2.5% NALAN GN 75/0  55/0    5% NALAN GN 100/0  76/0 

Cotton weave swatches were treated at a low 1.0 weight % concentrationof ZONYL 6991 with different concentrations of magnesium chloride for 12min at 25° C. in a Terg-O-Tometer, then squeezed to remove excesssolution and dried in the dryer for 40 min at 150° F. (65.5° C.). The1.0 weight % treatment of ZONYL 6991 is 1.0 weight % as is based on theweight of cotton fabric in the treatment. This corresponds to a rinsecycle concentration of 0.25 grams per liter of rinse water. The contactangle was measured by putting a drop of water on the flags and measuringafter 30 sec and 2 min. The results shown in Table 7 indicate that thefluoropolymer with high electrolyte concentration exhibits increasedwater repellency versus ZONYL 6991 used alone for treatment. TABLE 7Contact angle Composition (water) (weight %) 60 sec  1% ZONYL 6991^(a) 0 0% MgCl₂  1% ZONYL 6991 50  5% MgCl₂  1% ZONYL 6991 100 20% MgCl₂^(a)Cationic fluoropolymer emulsion from DuPont Chemicals

Cotton weave swatches were treated with different ratios of ZONYL 6700and NALAN GN for 12 min at 25° C. in a Terg-O-Tometer, then squeezed toremove excess solution, rinsed and dried in the dryer for 40 min at 150°F. (65.5° C.). The contact angles with both water and oil droplets weremeasured after 30 seconds. The results shown in Table 8 indicate thatapproximately a 4:1 to 1:4 ratio of fluoropolymer to hydrophobic agentis desirable for both optimum oil and water repellency. TABLE 8 37 38 3940 41 42 ZONYL 6700 0.5% 2% 2.5% 3% 3.75% 4.5% NALAN GN 4.5% 3% 2.5% 2%1.25% 0.5% Contact Angle (water) 117 110 112 110 121 52 30 secondsContact Angle (oil)  35 103 111 100 112  0 30 seconds

The examples in Table 9 show that using the inventive composition in therinse is surprisingly superior to pretreatment with surface finishingtreatments employing fluoropolymers that are commercially available forconsumer usage. The pretreatment product locks in stains already on thefabric, while the inventive composition, in contrast, does not hinderremoval of existing stains, but surprisingly, further acts to improvestain removal. A variety of stains were applied to untreated fabrics andallowed to age for at least 7 days to mimic the typical consumer delaybefore washing soiled laundry. The garments were then treated per labelinstructions using either a commercial consumer surface finishingtreatment (SCOTCHGARD) or rinsed in a 5% loading of ZONYL 6991(Inventive treatment). In both cases, fabric treatment was performed atsolution temperatures of 25° C. for 12 minutes, followed by squeezing toremove excess solution and fabrics were then dried in a dryer for 40minutes at 150° F. (65.5° C.). The stained/treated garments were thenwashed and rinsed in a commercially available residential washer using alabel recommended level of LIQUID TIDE detergent (produced by theProcter & Gamble Company) and dried in a dryer for 40 minutes. Stainremoval was judged visually using a 5 point scale where comparingtreated and not-treated stained and washed garments where numeric scoreswere assigned based on the following descriptive scale: 1—Much worsethan untreated, 2—Worse than untreated, 3—Equal to untreated, 4—Betterthan untreated, 5—Much better than untreated. TABLE 9 Inventive StainType Untreated Treatment SCOTCHGARD Grass Basis 4 1 Coffee Basis 4 1Clay Basis 3 2 Salad Dressing Basis 3 3

An experiment was conducted to compare the breathability of fabricstreated with commercially available anti-stain treatments with that ofthe invention. The porosity of the fabric to liquid water was used as ajudge of breathability. The porosity was determined by the ability ofthe fabric to support a measured weight of a column of water. SCOTCHGARDProtector (3M Company) was used as a representative of commerciallyavailable anti-stain treatments, and the SCOTCHGARD treatment was usedper the label instructions. 100% cotton weave fabrics were prepared witha 5% wash added loading of the ZONYL 6991 (Inventive treatment, 25° C.wash, hand wrung, dried for 40 minutes in a dryer at 150° F. (65.5°C.)). The sample fabrics were stretched over a 1 in. (2.54 cm) internaldiameter plastic tube and a piece of facial tissue was placed on top ofthe fabric (facing away from the tube). The fabric and tissue weresecured to the tube in a watertight fashion by use of a plastic tie. Thetube was oriented so that the fabric faced downward. Water was thengradually added to the tube until the tissue showed signs of wetting.The measured quantity of water added before wetting of the tissue wasnoted and was recorded as the corresponding porosity or breathabilityvalue. The results are set forth in Table 10. TABLE 10 Breathability(grams Treatment Detail of water in column) SCOTCHGARD treated sidefacing 0.44 away from the water column SCOTCHGARD treated side facing16.04 toward the water column Inventive Treatment 0.12

The examples in Table 11 demonstrate the preferred transient durabilityof the inventive treatment, as measured by the slow loss of protectionbenefit imparted to the treated fabrics, illustrated by the slow loss ofwater repellency after multiple washes using a commercial detergent, butwithout subsequent treatment using the inventive compositions. Thus inactual use, fabrics treated using the inventive compositions will resistthe build up of the fabric protective film that results from treatmentwhich may otherwise compromise the appearance due to excessive coatingand discoloration of the treated fabrics, or which may otherwisecompromise the softness and handfeel of the treated fabrics aftermultiple treatments. Accordingly, fabrics treated using the inventivecompositions will eventually lose their fabric protective benefitsunless subsequent treatments with the inventive composition are repeatedat some regular frequency. Advantageously, subsequent treatments may beemployed using lower levels of the inventive composition to maintain thefull protective benefits provided to treated fabrics without theundesirable build-up of the treatment on said fabrics. The swatches weretreated with a 5% loading of the invention for 12 min at 25° C. in theTerg-O-Tometer, then squeezed to remove excess solution and dried in thedryer for 40 min at 150° F. (65.5° C.). The commercially available pantswere purchased from Spiegel precoated with TEFLON brand stain resistantcoating. Both garments were washed in a residential washing machine withlabel recommended doses of LIQUID TIDE and subsequently dried in aresidential dryer. TABLE 11 Contact angle using water after 30 secNumber of wash cycles Inventive Treatment TEFLON treated pants 1 96 1172 22 112 3  0 110

Table 12 compares the handfeel of 100% cotton fabrics treated with theinventive treatment and those treated via a commercial application offluoropolymer (SCOTCHGARD). Thirty respondents were asked to choose thegarment with the best handfeel. The table shows the number of times eachgarment was chosen to have the better handfeel in a blind test. TABLE 12Inventive Commercially Treatment treated garment Chosen better handfeel30 0

In the following examples, the surprising dependence of addingadditional surfactants to the inventive treatment is demonstrated. Thesesurfactants can be added either directly via the formulation, or viaadded detergent.

Table 13 shows the dependence of adding nonionic surfactants in additionto the inventive system. The swatches were treated with a 5% loading ofthe inventive treatment with various amount of surfactant added andexhausted for 12 min at 25° C. in the Terg-O-Tometer, then squeezed toremove excess solution. The swatches were then rinsed in water for 5minutes at 25° C., squeezed to remove excess solution and dried in thedryer for 40 min at 150° F. (65.5° C.). The table reveals the contactangle for fabrics exhausted with a combination of the inventivetreatment along with surfactant. It is clearly seen that at levels ofnonionic surfactant equal to that supplied by use of a commercialdetergent, the repellency is negligible, but surprisingly, there is acritical level at which a fabric protective benefit is still realized.This indicates that in some nonionic surfactant systems, such as thoseemployed by commercial laundry detergents, addition of at least somezeta potential modifier may be further required in order to provide theoptimum fabric protective benefit. Conversely, this also demonstratesthat the level of use of primarily nonionic surfactant based detergentsmay be effectively reduced when used for cleaning clothing previouslytreated using the inventive treatment, as lower levels of the nonionicdetergent would be sufficient to effectively clean treated clothing yetmaintain, to some extent, the previously existing protective benefitcarried by the clothing. TABLE 13 43 44 45 ZONYL 6991 0.98 0.98 1.23(g/l) Non-ionic 0.11 0.22 0.43 surfactant (g/l) Contact angle 100 72 0water (initial)

In another example, it was demonstrated that the inventive treatment canalso tolerate low levels of anionic surfactants. In Table 14, theswatches were treated with a 5% loading of the inventive treatment withvarious amount of surfactant added and exhausted for 12 min at 25° C. inthe Terg-O-Tometer, then squeezed to remove excess solution and dried inthe dryer for 40 min at 150° F. (65.5° C.). The table reveals theresultant contact angles, demonstrating a surprising critical level inwhich the anionic surfactants can be incorporated. Furthermore, acommercially available laundry detergent was used at 10% and 100% of therecommended dosage. At full usage levels, no repellency is observed,however repellency was observed at the reduced level. TABLE 14 46 47 4849 50 51 52 ZONYL 6991 1.23 1.23 1.23 1.23 1.23 1.23 1.23 (g/l) Anionic0.026^(a) 0.065^(a) 0.16^(a) 0.65^(a) surfactant(g/l) FRESH 0.043^(b)0.22^(b) 0.43^(b) START Contact angle 82 70 0 0 83 0 0 water (initial)^(a)Mixture of 77% AEOS and 23% LAS, both anionic surfactants.^(b)Commercial laundry detergent from Colgate-Palmolive, containing LASand alcohol ethoxylate, 10% recommended level^(c)see footnote b, 50% recommended level^(d)see footnote b, 100% recommended level

Surprisingly, the reduction of surfactant levels in the above examples,though key to the ultimate repellency imparted to the fabric, does notmaterially affect the final appearance of the washed samples relative tofabrics that were washed at full doses of detergent without theinventive system. Very good cleaning systems can thus be realized atsignificantly reduced surfactant levels, thereby reducing the overallbiological challenge to the environment.

In the following three sets of experiments, fabric treatmentcompositions containing fluoropolymers, hydrophobic agents, and zetapotential modifiers were tested for their effectiveness in enhancingwater and oil repellency. Although fragrance and colorant were not addedin the compositions tested, these optional components typically would beincluded in commercial products at amounts of about 0.4% and 0.004%,respectively.

In the first experiments, six compositions each having the same amountsof fluoropolymers and hydrophobic agents but different amounts of zetapotential modifier (e.g., cationic surfactant in the form of aquaternary ammonium compound) were prepared. The compositions werediluted using water to effective use levels equivalent to 5% by weightof the undiluted compositions. The zeta potential of each compositionwas measured using two instruments, i.e., from Beckman and ParticleSizing. The compositions were also applied onto cotton fabrics with aU.S. Testing TERG-O-TOMETER water bath that was maintained at 70° F.(21° C.) to which cotton fabric and sufficient amounts of composition toproduce a 5% load by fabric weight was attained. The fabric was exposedfor 3.5 minutes and then dried in a commercial dryer at 150° F. (65.6°C.) for 50 minutes. The contact angles of water and oil droplets on thedried fabric were initially measured and measured again 2 minutes later.The results are set forth in Table 15. TABLE 15 Composition (wt. %)Composition Contact Angle ZONYL MICHEM ACCOSOFT Parameters Zeta Pot.Zeta Pot. (t = 0-t = 2 min.) No. 8300(a) 473(b) 550(c) water* pH (mV)**(mV)*** Water Oil 1 34 51 0 balance 3.60 ± 0.05 −21.2 −9.1 0—0 0—0 2 3451 2 balance 3.60 ± 0.05 36.5 21.2 116-112 116—116 3 34 51 4 balance3.60 ± 0.05 45.1 27.9 111-103 115—115 4 34 51 6 balance 3.60 ± 0.05 51.733.6 114-107 118—118 5 34 51 8 balance 3.60 ± 0.05 55.5 36.2 95-89116—116 6 34 51 10 balance 3.60 ± 0.05 57.9 36.6 70-63 105—105(a)fluoropolymer 18% active(b)paraffin 32% active(c)cationic surfactant 75% active; Methyl bis(tallowamidoethyl)-2-hydroxyethyl ammonium methyl sulfate*includes acid addition to adjust composition pH**5% (by wt. of fabric) equivalent dilution measured by Beckmaninstrument***5% (by wt. of fabric) equivalent dilution measured by Particle Sizinginstrument.

As is apparent, the formulation containing no zeta potential modifierprovided no repellency enhancement. Optimum repellency occurred wherethe level of this particular zeta potential modifier was between 2-6%;the water repellency decreased when the zeta potential level reached 8%or higher which suggests that too much of the zeta potential modifiermay have an adverse effect as well.

In the second set of experiments, eight identical fabric treatmentcompositions containing fluoropolymers, hydrophobic agents, and zetapotential modifiers were tested for their effectiveness in enhancingwater and oil repellency. They were used with different types ofdetergents with and without a softener in a commercial washing machine.Specifically, cotton fabric was washed in a commercial washer (69 litercapacity, 6 lb (2.2 kg) ballast, 12 min. wash cycle at 93° F., or 34°C., and 3 min. rinse cycle at 68° F., or 20° C.) and 140.6 grams of oneof the eight formations were added in the wash water. The fabric wasdried in a drying machine for 50 minutes at 150° F. (66° C.). Aprimarily anionic surfactant containing detergent (LIQUID TIDE fromProcter & Gamble Co.), a nonionic detergent (FRESH START fromColgate-Palmolive Co.), and/or a fabric softener that contained acationic surfactant (DOWNY from Procter & Gamble) were also added asdescribed herein. The contact angles of water and oil droplets were alsomeasured after the fabric was dried. The procedures employed and theresults are set forth in Table 16. TABLE 16 Additional CommercialProducts Composition (wt %) Composition Added to Washing Machine ContactAngle-Cotton ZONYL MICHEM ACCOSOFT parameters Added to Added to (t = 0-t= 2 min.) No. 8300(a) 743(b) 550(c) water* pH Wash Rinse Water Oil 137.6 56.4 6 balance 3.60 ± 0.05 none Downy** 113-93  113-110 2 37.6 56.46 balance 3.60 ± 0.05 Downy** none 81-64 110—110 3 37.6 56.4 6 balance3.60 ± 0.05 Fresh Start Downy** 88-44 0—0 4 37.6 56.4 6 balance 3.60 ±0.05 Fresh Start and none 104—104 108-106 Downy** 5 37.6 56.4 6 balance3.60 ± 0.05 Fresh Start none 0—0 0—0 6 37.6 56.4 6 balance 3.60 ± 0.05Liquid Tide Downy** 0—0 0—0 7 37.6 56.4 6 balance 3.60 ± 0.05 LiquidTide and none 36-0  15-0  Downy** 8 37.6 56.4 6 balance 3.60 ± 0.05Liquid Tide none 0—0 0—0(a)fluoropolymer 18% active(b)paraffin 32% active(c)cationic surfactant 75% active; methyl bis(tallowamidoethyl)-2-hydroxyethyl ammonium methyl sulfate*includes acid addition to adjust composition pH**Downy usage = 30 g/69 L

As is apparent, detergent free systems (treatments 1 and 2) yieldeffective repellency when the fabric softener was added to either thewash or the rinse cycle. The presence of nonionic detergent yieldedeffective repellency when it is added to the washing cycle along withthe softener as shown in treatment 4. Finally, the presence ofpredominately anionic detergent appears to disrupt the efficacy oftreatment, with the softener added to either the wash (treatment 7) orrinse (treatment 6).

Finally, in the third set of experiments, three different treatmentcompositions were formulated and their effectiveness in enhancing waterand oil repellency was tested in conjunction with either a liquid or dryanionic detergent (LIQUID TIDE or TIDE, respectively, from Procter &Gamble). Each composition had different amounts of zeta potentialmodifier. The fabrics tested in each case included a combinationcomprising 70% cotton material and 30% of a cotton/synthetic blend,which is designated p/c. The detergent, when employed, was added in thewash cycle. The treatment composition was added in the rinse cycle and,in one case, fabric softener, which included cationic surfactants, wasalso added in the rinse cycle.

It was expected that a small amount of detergent would adhere to thedamp fabric following the wash cycle so that the residual detergentwould re-dissolve into the water at the beginning of the rinse cycle.The results are presented in Table 17. TABLE 17 Commercial ProductsWater Contact Composition (wt. %) Composition Added to Wash (InventiveAngle Oil Contact Angle ZONYL MICHEM ACCOSOFT parameters Treatmentweight) (t = 0-t = 2 min.) (t = 0-t = 2 min.) No. 18300(a) 743(b) 550(c)water* PH wash Rinse cotton p/c cotton p/c 1 34 51 6 balance 3.60 ± 0.05none none (219 g) 88-78 97-85 100-96  100-94  Liquid Tide none (219 g)69-45 0—0 0—0 0—0 Liquid Tide Downy (219 g) 99-78 102-90  112—112110—110 2 34 51 10.6 balance 3.60 ± 0.05 none none (219 g) 109-89 114-106 113-110 115-110 Liquid Tide none (219 g) 108-87  100-93  106—106117-113 Dry Tide none (219 g) 103-87  118-106 118-114 114-113 LiquidTide none (219 g) 118-98  112-98  111-104 112-108 Liquid Tide none (177g) 109-84  112-86  102-98  107-106 Liquid Tide none (118 g) 0—0 0—0 0—00—0 3 34 51 13.1 balance 3.60 ± 0.05 Liquid Tide none (219 g) 104-94 110-98  108-102 121-118 Liquid Tide none (177 g) 100-85  113—103 110-108111-108 Liquid Tide none (118 g) 72-0  102-0  85-55 87-73(a)fluoropolymer 18% active(b)paraffin 32% active(c)cationic surfactant 75% active; methyl bis(tallowamidoethyl)-2-hydroxyethyl ammonium methyl sulfate*includes acid addition to adjust composition pH

As is apparent, the 6% zeta potential modifier formulation (no. 1)exhibited good repellency performance in the absence of wash addeddetergent but it exhibited poor repellency performance when detergentwas added in the wash. However, the same formulation exhibited goodrepellency performance when a fabric softener was added to the rinsecycle to increase the amount of cationic surfactant, i.e., zetapotential modifier. In addition, increasing the level of the zetapotential modifier (i.e., ACCOSOFT 550) to 10.6% in formulation no. 2improved repellency performance when detergent was present in the washcycle but, even with the increase in zeta potential modifier, repellencyperformance actually decreased at the lower dose (i.e., 118 g) oftreatment composition 2 when detergent was present in the wash. Thissuggests that the amount of zeta potential modifier was not enough tocounteract the adverse effects of the anionic surfactants in thedetergent. However, when the amount of zeta potential modifier wasincreased to 13.1%, there was an improvement in repellency performanceeven at the lower dose (i.e., 118 g) of treatment composition 3 whendetergent was present.

Although only preferred embodiments of the invention are specificallydisclosed and described above, it will be appreciated that manymodifications and variations of the present invention are possible inlight of the above teachings and within the purview of the appendedclaims without departing from the spirit and intended scope of theinvention.

1. A method of non-durably imparting transient stain resistance and oilrepellency properties to a fabric that is laundered that comprises thesteps of: (a) immerging the fabric in a bath containing wash liquor anda detergent; (b) removing wash liquor from the bath and thereafter; (c)adding sufficient water to the bath to immerse the fabric in an aqueouscomposition wherein the aqueous composition contains a fluoropolymerthat comprises 0.5 to 60 weight % of the aqueous composition and ahydrophobic agent having a melting point or glass transition temperatureof less than 100° C. wherein said hydrophobic agent comprises 0.5 to 60weight % of the aqueous composition; and (d) curing the fabric at atemperature above ambient temperature but less than 100° C. to form atreated fabric whereby the fluoropolymer and the hydrophobic agent arereversibly cured onto the treated fabric such that the treated fabricexhibits greater stain resistance and higher oil repellency relative toan identical, but non-treated fabric and wherein the transient stainresistance and oil repellency properties are lost from the treatedfabric following three subsequent laundering operations each of whichcomprises steps (a) and (b) but not step (c).
 2. The method of claim 1wherein the aqueous composition comprises an effective amount of a zetapotential modifier so that the aqueous composition has a zeta potentialthat is positive and greater than zero millivolts; and step (d)comprises (i) removing water from the bath and (ii) then curing thefabric at a temperature above ambient temperature but less than 100° C.3. The method of claim 1 wherein the fluoropolymer is 5 to 30 weight %of the aqueous composition.
 4. The method of claim 1 wherein thehydrophobic agent is 5 to 30 weight % of the aqueous composition.
 5. Themethod of claim 2 wherein the zeta potential modifier is 0.1 to 30weight % of the aqueous composition.
 6. The method of claim 2 whereinthe zeta potential modifier is a cationic material.
 7. The method ofclaim 6 wherein the cationic material is a cationic surfactant selectedfrom the group consisting of mono and di-methyl fatty amines, alkyltrimethyl ammonium salts, dialkyl dimethyl ammonium salts, alkyl amineacetates, trialkylammonium acetates, alkyldimethylbenzyl ammonium salts,dialkylmethylbenzyl ammonium salts, alkylpyridinium halide and alkyl(alkyl substituted) pyridinium salts, alkylthiomethylpyridinium salts,alkylamidomethylpyridinium salts, alkylquinolinium salts,alkylisoquinolinium salts, N,N-alkylmethylpyrollidinium salts,1,1-dialkylpiperidinium salts, 4,4-dialkylthiomorpholinium salts,4,4-dialkylthiomorpholinium-1-oxide salts, methyl bis(alkylethyl)-2-alkyl imidazolinium methyl sulfate, methyl bis(alkylamidoethyl)-2-hydroxyethyl ammonium methyl sulfate,alkylamidopropyl-dimethylbenzyl ammonium salts,carboxyalkyl-alkyldimethyl ammonium salts, alkylamine oxides,alkyldimethyl amine oxides, poly(vinylmethylpyridinium) salts,poly(vinylpyridine) salts, polyethyleneimines, trialkyl phosphoniumbicarbonates, trialkylmethyl phosphonium salts,alkylethylmethylsulfonium salts, and alkyldimethylsulfoxonium salts. 8.The method of claim 1 wherein the hydrophobic agent is at least partlyinsoluble in water at a temperature of about 20° C.
 9. The method ofclaim 1 wherein the hydrophobic agent is selected from the groupconsisting of hydrophobic waxes, polymers produced from ethylenicallyunsaturated monomers, low molecular weight polyethylene, low densitypolyethylene, polypropylene, polyolefin, polyurethane, ethyl vinylacetate, polyvinyl chloride, co-polymers, and emulsifiable waxes. 10.The method of claim 1 wherein the aqueous composition comprises anaqueous liquid carrier that includes a low molecular weight organicsolvent.
 11. The method of claim 10 wherein the aqueous liquid carrieris between 20% and 80% weight of the composition.
 12. The method ofclaim 1 wherein the aqueous composition further comprises an additiveselected from the group consisting of emulsifiers, pH adjusters,silicones, non-ionic surfactants, cationic surfactants, amphotericsurfactants, zwitterionic surfactants, anionic surfactants, soil releaseagents, soil release polymers, antistatic agents, fragrances, fragranceextenders, antimicrobial actives, preservatives, dyes, colorants,viscosity control agents, antifoaming agents, pearlizing agents,opacifying agents, antioxidants, sunscreens, dye transfer inhibitors,dye fixative agents, dispersants, chlorine scavengers, wetting agents,electrolytes, enzymes, bleaching agents, brighteners, heavy metalchelating agents, fabric softener actives, soil suspending agents, soilrelease agents, and mixtures thereof.
 13. The method of claim 1 whereinthe hydrophobic agent has a melting point or glass transitiontemperature between 45° C. and 100° C.
 14. The method of claim 1 whereinthe aqueous composition comprises: (i) 5 to 30 weight % of afluoropolymer; (ii) 5 to 30 weight % of the hydrophobic agent; and (iii)a liquid carrier.
 15. The method of claim 1 wherein the fabric is madeof cotton.
 16. The method of claim 1 wherein the step (d) produces acured fabric that exhibits greater stain resistance and higher oilrepellency relative to an identical fabric that had been subject tosteps (a), (b), and (c) but which had been cured by excessive heatingabove 100° C.
 17. The method of claim 1 wherein the fabric is cured byheating the fabric to a temperature that is less than the melting pointor glass transition temperature of the hydrophobic agent.
 18. A methodof reversibly imparting transient stain resistance and oil repellencyproperties to a fabric that comprises the steps of: (a) applying acomposition onto the fabric wherein the composition comprises afluoropolymer and a hydrophobic agent having a melting point or glasstransition temperature of less than 100° C.; and (b) curing the fabricat a temperature above ambient temperature but less the hydrophobicagent's melting point or glass transition temperature to form a treatedfabric whereby the fluoropolymer and the hydrophobic agent arereversibly cured onto the treated fabric such that the treated fabricexhibits greater stain resistance and higher oil repellency relative toan identical, but non-treated fabric and wherein the transient stainresistance and oil repellency properties are lost from the treatedfabric following three subsequent laundering operations each of whichcomprises the steps of (i) immerging the fabric in a bath containingwash liquor bath and (ii) removing wash liquor from the bath.
 19. Themethod of claim 18 wherein the composition comprises a zeta potentialmodifier.
 20. The method of claim 19 wherein the zeta potential modifieris a cationic material.
 21. The method of claim 19 wherein the cationicmaterial is a cationic surfactant selected from the group consisting ofmono and di-methyl fatty amines, alkyl trimethyl ammonium salts, dialkyldimethyl ammonium salts, alkyl amine acetates, trialkylammoniumacetates, alkyldimethylbenzyl ammonium salts, dialkylmethylbenzylammonium salts, alkylpyridinium halide and alkyl (alkyl substituted)pyridinium salts, alkylthiomethylpyridinium salts,alkylamidomethylpyridinium salts, alkylquinolinium salts,alkylisoquinolinium salts, N,N-alkylmethylpyrollidinium salts,1,1-dialkylpiperidinium salts, 4,4-dialkylthiomorpholinium salts,4,4-dialkylthiomorpholinium-1-oxide salts, methyl bis(alkylethyl)-2-alkyl imidazolinium methyl sulfate, methyl bis(alkylamidoethyl)-2-hydroxyethyl ammonium methyl sulfate,alkylamidopropyl-dimethylbenzyl ammonium salts,carboxyalkyl-alkyldimethyl ammonium salts, alkylamine oxides,alkyldimethyl amine oxides, poly(vinylmethylpyridinium) salts,poly(vinylpyridine) salts, polyethyleneimines, trialkyl phosphoniumbicarbonates, trialkylmethyl phosphonium salts,alkylethylmethylsulfonium salts, and alkyldimethylsulfoxonium salts. 22.The method of claim 18 wherein the hydrophobic agent is at least partlyinsoluble in water at a temperature of about 20° C.
 23. The method ofclaim 18 wherein the hydrophobic agent is selected from the groupconsisting of hydrophobic waxes, polymers produced from ethylenicallyunsaturated monomers, low molecular weight polyethylene, low densitypolyethylene, polypropylene, polyolefin, polyurethane, ethyl vinylacetate, polyvinyl chloride, co-polymers, and emulsifiable waxes. 24.The method of claim 18 wherein the composition further comprises anadditive selected from the group consisting of emulsifiers, pHadjusters, silicones, non-ionic surfactants, cationic surfactants,amphoteric surfactants, zwitterionic surfactants, anionic surfactants,soil release agents, soil release polymers, antistatic agents,fragrances, fragrance extenders, antimicrobial actives, preservatives,dyes, colorants, viscosity control agents, antifoaming agents,pearlizing agents, opacifying agents, antioxidants, sunscreens, dyetransfer inhibitors, dye fixative agents, dispersants, chlorinescavengers, wetting agents, electrolytes, enzymes, bleaching agents,brighteners, heavy metal chelating agents, fabric softener actives, soilsuspending agents, soil release agents, and mixtures thereof.
 25. Themethod of claim 18 wherein the hydrophobic agent has a melting point orglass transition temperature between 45° C. and 100° C.
 26. The methodof claim 18 wherein the fabric is made of cotton.
 27. The method ofclaim 18 wherein the composition is sprayed onto the fabric.